Unknown Speed Optimizer vulnerabilities

1 vulnerability

Known vulnerabilities in Unknown Speed Optimizer, newest first, with CVSS severity, EPSS, KEV listings, ransomware use and the affected versions.

8.8CVE-2026-3220unknownautoptimize+5
EPSS score
0.45%
The Autoptimize WordPress plugin before 3.1.15, Clearfy Cache WordPress plugin before 2.4.2, Speed Optimizer WordPress plugin before 7.7.9 are vulnerable to unauthenticated Stored Cross-Site Scripting (XSS) due to a predictable replacement hash used during the HTML minification process and abusing a regular expression. This allows an attacker to inject arbitrary HTML attributes in the final HTML output by anticipating the placeholder format.