What the vulnerability does
01Description
The Custom 404 Pro plugin for WordPress is vulnerable to time-based SQL Injection via the ‘path’ parameter in all versions up to, and including, 3.12.0 due to insufficient escaping on the user supplied parameter and lack of sufficient preparation on the existing SQL query. This makes it possible for authenticated attackers, with Administrator-level access and above, to append additional SQL queries into already existing queries that can be used to extract sensitive information from the database.
Explanation of Vulnerability in Simple Terms
02Summary
Custom 404 Pro versions up to 3.12.0 contain a SQL injection vulnerability in database query handling. An authenticated administrator can craft malicious input to extract sensitive data from the site's database. The vulnerability requires high-level privileges and does not allow data modification or system unavailability.
What an attacker can do
03Attacker Capabilities
Read sensitive data from the site database via SQL injection.
Potential impact on your site
04Site Impact
An admin account compromise could expose database contents including user credentials and private information.
Conditions required to exploit
05Prerequisites
Attacker must have administrator-level access to the site.
Key dates
06Disclosure timeline
October 11, 2025
CVE published
April 8, 2026
Record updated
