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CVE-2025-4396

HighPublished

Relevanssi <= 4.24.4 (Free) and <= 2.27.5 (Premium) - Unauthenticated SQL Injection

Published: May 13, 2025
Updated: Apr 8, 2026
Assigning CNA: Wordfence
Evidence observed: Aug 17, 2026

Primary CVSS

7.5/ 10High

nvd · CVSS 3.1

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

EPSS probability estimate

2.7%

Low · next 30 days

Percentile: 85.0%
Model date: Sep 21, 2026

EPSS is a statistical estimate, not a certainty or a measure of impact. Combine it with CVSS, KEV status, exposure and your environment.

Summary

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.

Sources

CVE-2025-4396Exploit
This repository contains a practical research and validation toolkit for CVE-2025-4396, an unauthenticated Time-Based Blind SQL Injection affecting the WordPress Relevanssi plugin through the `cats` parameter.
CVE-2025-4396Exploit
CVE-2025-4396 - WordPress Relevanssi Time-Based Blind SQL Injection

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