Known vulnerabilities in Speed Optimizer – The All-In-One Performance-Boosting Plugin

Boost your website performance and page speed, and increase conversions with powerful caching, frontend, media, and environment optimizations.

3Reported vulnerabilities

9.8Highest CVSS score

7.8.1Latest version

1,000,000+Active installs

What to do now

Update Speed Optimizer – The All-In-One Performance-Boosting Plugin to 7.8.1 or later. 3 of these have a fixed version available. Updating resolves them.

Plugin last updated: August 12, 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-2019-25217	Critical 9.8	0.9%	Before 5.0.12	`5.0.12`	October 16, 2024
CVE-2026-15421	Medium 6.4	0.4%	0 to 7.8.0 (inclusive)	`7.8.1`	August 19, 2026
CVE-2024-32532	Medium 5.3	0.5%	7.4.6 and earlier	`7.5.0`	April 15, 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.