Known vulnerabilities in Jetpack Boost – Website Speed, Performance and Critical CSS

Speed up your WordPress site with one-click optimizations like Page Cache, Critical CSS, and Image CDN to improve Core Web Vitals.

1Reported vulnerabilities

5.5Highest CVSS score

4.7.0Latest version

200,000+Active installs

What to do now

Update Jetpack Boost – Website Speed, Performance and Critical CSS to 3.4.7 or later. 1 of these have a fixed version available. Updating resolves them.

Plugin last updated: August 17, 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-2024-6584	Medium 5.5	0.5%	3.4.6 and earlier	`3.4.7`	July 8, 2024

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