Known vulnerabilities in JCH Optimize

This plugin automatically performs several front end optimizations to your site to boost performance and increase PageSpeed scores.

4Reported vulnerabilities

4.4Highest CVSS score

6.0.1Latest version

4,000+Active installs

What to do now

Update JCH Optimize to 4.2.1 or later. 4 of these have a fixed version available. Updating resolves them.

Plugin last updated: July 13, 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
CVE-2023-25491	Medium 4.4	0.4%	3.2.2 and earlier	`3.2.3`	March 2, 2023
CVE-2024-34808	Medium 4.3	0.4%	4.2.0 and earlier	`4.2.1`	May 13, 2024
CVE-2024-30481	Medium 4.3	0.3%	4.0.0 and earlier	`4.0.1`	March 28, 2024
WF-2077bd81-52bd-4aa7-85f6-9abb02aec65b	Medium 4.3	—	Before 4.0.1	`4.0.1`	August 8, 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.