CVE Catalog

CVE-2026-3220

High
Published: Translated: NVD NIST

Summary

The Autoptimize plugin before version 3.1.15, Clearfy Cache plugin before version 2.4.2, and Speed Optimizer plugin before version 7.7.9 are vulnerable to unauthenticated Stored Cross-Site Scripting (XSS). They exploit a predictable replacement hash during the HTML minification process, allowing arbitrary HTML attributes to be injected.

Risk Assessment

An attacker can inject malicious HTML code, potentially leading to user data theft or session hijacking. This poses a serious threat to the application's security and user data.

Recommendation

It is recommended to update the plugins to their latest versions to mitigate this vulnerability. Additionally, conducting a security audit of the application is advisable to identify other potential threats.

Related vulnerabilities

Original NVD description (English source)

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.

Vulnerability data from NVD (NIST) · CISA KEV · EPSS