id: CVE-2025-68613

info:
  name: CVE-2025-68613 - n8n Workflow Automation RCE (Detection)
  author: ashwesker
  severity: critical
  description: |
    n8n is a fair-code licensed workflow automation platform.
    CVE-2025-68613 is a critical vulnerability affecting n8n versions
    where workflow expression handling can lead to remote code execution.
    Vulnerable versions can be identified through exposed metadata on
    public authentication pages.
  reference:
    - https://nvd.nist.gov/vuln/detail/CVE-2025-68613
  metadata:
    vendor: n8n
    product: n8n Workflow Automation
    verified: true
    shodan-query: http.favicon.hash:-831756631
  tags: cve,cve2025,n8n,rce,workflow,automation

http:
  - method: GET
    path:
      - "{{BaseURL}}/signin"
      - "{{BaseURL}}/login"
      - "{{BaseURL}}/"

    stop-at-first-match: true

    extractors:
      - type: regex
        name: base64_content
        group: 1
        regex:
          - '<meta name="n8n:config:sentry" content="([A-Za-z0-9+/=]+)"'
        internal: true

      - type: dsl
        name: decoded
        dsl:
          - base64_decode(base64_content)
        internal: true

      - type: dsl
        name: version
        dsl:
          - replace_regex(decoded, ".*n8n@([0-9]+\\.[0-9]+\\.[0-9]+).*", "$1")
        internal: true

      - type: dsl
        dsl:
          - '"Detected n8n Version: " + version'

    matchers-condition: and
    matchers:
      - type: status
        status:
          - 200

      - type: word
        part: body
        words:
          - "n8n"
        case-insensitive: true

      - type: dsl
        name: vulnerable
        dsl:
          - |
            (compare_versions(version, ">= 0.211.0") && compare_versions(version, "< 1.120.4")) ||
            (compare_versions(version, ">= 1.121.0") && compare_versions(version, "< 1.121.1"))