mcp-server-semgrep/semgrep-rules/javascript/angular/security/detect-angular-element-methods.yaml

MCP Server for Semgrep Integration - static code analysis with AI

rules:
- id: detect-angular-element-methods
  message: >-
    Use of angular.element can lead to XSS if user-input is treated as part of the HTML element within
    `$SINK`. It is recommended to contextually output encode user-input, before inserting into `$SINK`. If
    the HTML needs to be preserved it is recommended to sanitize the input using $sce.getTrustedHTML or
    $sanitize.
  metadata:
    confidence: LOW
    references:
    - https://docs.angularjs.org/api/ng/function/angular.element
    - https://owasp.org/www-chapter-london/assets/slides/OWASPLondon20170727_AngularJS.pdf
    category: security
    cwe:
    - "CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')"
    technology:
    - angularjs
    owasp:
    - A07:2017 - Cross-Site Scripting (XSS)
    - A03:2021 - Injection
    cwe2022-top25: true
    cwe2021-top25: true
    subcategory:
    - vuln
    likelihood: LOW
    impact: MEDIUM
  languages:
  - javascript
  - typescript
  severity: INFO
  mode: taint
  pattern-sources:
  - patterns:
    - pattern-either:
      - patterns:
        - pattern-inside: |
            function(..., $SCOPE, ...) { ... }
        - focus-metavariable: $SCOPE
        - metavariable-regex:
            metavariable: $SCOPE
            regex: ^\$scope$
      - pattern: $rootScope
      - pattern: $injector.get('$rootScope')
      - pattern: $injector.get('$scope')
  pattern-sinks:
  - patterns:
    - pattern-either:
      - pattern-inside: |
          angular.element(...). ... .$SINK($QUERY)
      - pattern-inside: |
          $ANGULAR = angular.element(...)
          ...
          $ANGULAR. ... .$SINK($QUERY)
    - metavariable-regex:
        metavariable: $SINK
        regex: ^(after|append|html|prepend|replaceWith|wrap)$
    - focus-metavariable: $QUERY
  pattern-sanitizers:
  - patterns:
    - pattern-either:
      - pattern: $sce.getTrustedHtml(...)
      - pattern: $sanitize(...)
      - pattern: DOMPurify.sanitize(...)