ghost-cms-installer: Ghost CMS Installation Setup - Exposure

2026-03-25 ghostcmsinstaller PoC Public

Description

Detected Ghost CMS installation setup wizard accessible without authentication. An unauthenticated remote attacker can navigate to

/ghost/#/setup and complete the installation to gain full owner-level administrative control of the site.

PoC

id: ghost-cms-installer

info:
  name: Ghost CMS Installation Setup - Exposure
  author: 0x_Akoko
  severity: high
  description: |
    Detected Ghost CMS installation setup wizard accessible without authentication. An unauthenticated remote attacker can navigate to
    /ghost/#/setup and complete the installation to gain full owner-level administrative control of the site.
  reference:
    - https://ghost.org/docs/install/
    - https://ghost.org/docs/config/
    - https://github.com/TryGhost/Ghost
  metadata:
    max-request: 1
    verified: true
    fofa-query: app="Ghost-CMS"
    shodan-query: http.component:"Ghost"
  tags: ghost,cms,exposure,setup,takeover,unauth

http:
  - method: GET
    path:
      - "{{BaseURL}}/ghost/api/admin/authentication/setup/"
      - "{{BaseURL}}/ghost/api/v3/admin/authentication/setup/"

    stop-at-first-match: true
    host-redirects: true
    max-redirects: 2

    matchers:
      - type: dsl
        dsl:
          - 'status_code == 200'
          - 'contains(content_type, "application/json")'
          - 'contains_all(body, "\"setup\"", "\"status\"", "false")'
        condition: and
# digest: 490a0046304402201f06efa3a0f6361090f1d87b4616d443a2455b9d6952546b0a079356ee0965d6022040a342f449e075a02056915c05f69e99ba94d83155721c97186deadf07ec4afc:922c64590222798bb761d5b6d8e72950

# Visit https://trap.biu.life/ to view exploit trends for this vulnerability.

References

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