What’s Vulnerable › Vulnerabilities

CVE-2024-3213: Relevanssi – A Better Search <= 4.22.1 - Missing Authorization to Unauthenticated Count Option Update

• Severity: high (CVSS 8.2 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.8% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2024-04-09 · updated 2026-06-17
• Weakness: CWE-862

Description

The Relevanssi – A Better Search plugin for WordPress is vulnerable to unauthorized modification of data due to a missing capability check on the relevanssi_update_counts() function in all versions up to, and including, 4.22.1. This makes it possible for unauthenticated attackers to execute expensive queries on the application that could lead into DOS.

Affected products

• Relevanssi: before 4.22.2 — fixed in 4.22.2

How to fix

Upgrade to a fixed version: Relevanssi 4.22.2. Check the vendor advisory for mitigations.

References

• https://plugins.trac.wordpress.org/browser/relevanssi/trunk/lib/admin-ajax.php#L443
• https://plugins.trac.wordpress.org/changeset/3064304/relevanssi/tags/4.22.2/lib/admin-ajax.php
• https://www.wordfence.com/threat-intel/vulnerabilities/id/e625130f-8e21-4baf-9d3c-4cbb806b9e52?source=cve
• https://plugins.trac.wordpress.org/browser/relevanssi/trunk/lib/admin-ajax.php#L443
• https://plugins.trac.wordpress.org/changeset/3064304/relevanssi/tags/4.22.2/lib/admin-ajax.php
• https://www.wordfence.com/threat-intel/vulnerabilities/id/e625130f-8e21-4baf-9d3c-4cbb806b9e52?source=cve

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