Known vulnerabilities in Better Search – Relevant search results for WordPress

Better Search replaces the default WordPress search with a better search engine that gives contextual results sorted by relevance.

8Reported vulnerabilities

9.3Highest CVSS score

4.4.0Latest version

5,000+Active installs

What to do now

Update Better Search – Relevant search results for WordPress to 4.2.2 or later. 8 of these have a fixed version available. Updating resolves them.

Plugin last updated: August 2, 2026 / Tested up to WordPress: 7.0.4 / View on wordpress.org

Reported vulnerabilities

Ordered by how urgently they need attention — whether a vulnerability is actually being exploited, and how likely exploitation is, rather than CVSS severity alone.

CVE	Severity	Exploit probability next 30 days	Affected versions	Fixed in	Published
WF-f6f91414-5035-4cab-81ad-18558fe43500	Critical 9.3	—	Before 2.2.3	`2.2.3`	March 15, 2019
CVE-2021-4373	Medium 4.3	0.5%	2.5.2 and earlier	`2.5.3`	June 7, 2023
CVE-2024-29142	High 7.1	0.4%	Before 3.3.1	`3.3.1`	March 19, 2024
CVE-2026-24938	Medium 6.4	0.2%	4.2.1 and earlier	`4.2.2`	November 22, 2025
CVE-2025-47507	Medium 6.4	0.2%	4.1.0 and earlier	`4.1.1`	May 7, 2025
WF-e057a35b-8162-4636-9fd9-419378df1ca1	Medium 6.1	—	1.3.4 and earlier	`1.3.5`	December 16, 2014
CVE-2021-4400	Medium 4.3	0.4%	2.5.2 and earlier	`2.5.3`	July 1, 2023
WF-d7a02502-bc3c-4fd1-b6db-7b3c476c141f	Medium 4.3	—	3.1.0 and earlier	`3.2.0`	April 10, 2023

Sources: vulnerability records from NVD, exploitation from CISA KEV, exploit probability from EPSS. Affected versions come from CPE ranges or from the reporting CNA.