What the vulnerability does
01Description
The Relevanssi – A Better Search plugin for WordPress is vulnerable to time-based SQL Injection via the cats and tags query parameters in all versions up to, and including, 4.24.4 (Free) and <= 2.27.5 (Premium) 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 to already existing queries that can be used to extract sensitive information from the database.
Explanation of Vulnerability in Simple Terms
02Summary
Relevanssi Premium versions up to 2.27.5 contain a SQL injection vulnerability in search functionality. An unauthenticated attacker can craft malicious search queries to read sensitive data from the site's database, including user information and configuration details. No user interaction is required. Update to a version newer than 2.27.5 immediately.
What an attacker can do
03Attacker Capabilities
Read sensitive data from the site database via malicious search queries.
Potential impact on your site
04Site Impact
Attackers can extract user data, credentials, and site configuration without logging in.
Conditions required to exploit
05Prerequisites
Network access to the site; no authentication or user interaction required.
Key dates
06Disclosure timeline
May 13, 2025
CVE published
April 8, 2026
Record updated
