id: addeventlistener-detect

info:
  name: DOM EventListener - Cross-Site Scripting
  author: yavolo,dwisiswant0
  severity: info
  description: EventListener contains a cross-site scripting vulnerability via the document object model (DOM). An attacker can execute arbitrary script which can then allow theft of cookie-based authentication credentials and launch of  other attacks.
  reference:
    - https://portswigger.net/web-security/dom-based/controlling-the-web-message-source
  classification:
    cvss-metrics: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N
    cvss-score: 7.2
    cwe-id: CWE-79
  metadata:
    max-request: 1
  tags: xss,misc

http:
  - method: GET
    path:
      - "{{BaseURL}}"

    matchers:
      - type: regex
        part: body
        regex:
          - (([\w\_]+)\.)?add[Ee]vent[Ll]istener\(["']?[\w\_]+["']? # Test cases: https://www.regextester.com/?fam=121118

# digest: 4a0a0047304502200dae342b4cead9ec9850751b8bd270a146f5bb324b5c97740c79e885e87a7671022100d6b9d433109287417ed460771846a6eec06dc37a26e48238e4d0a3508f338ec8:922c64590222798bb761d5b6d8e72950