CVE-2026-15421

The Speed Optimizer – The All-In-One Performance-Boosting Plugin plugin for WordPress is vulnerable to Stored Cross-Site Scripting via Image Tag Attributes in all versions up to, and including, 7.8.0 due to insufficient input sanitization and output escaping. This makes it possible for...

CVE-2026-15421

The Speed Optimizer WordPress plugin (versions ≤ 7.8.0 ) is vulnerable to Stored Cross-Site Scripting (XSS) via image tag attributes in its Lazy Load Media feature. The root cause is insufficient input sanitization and output escaping in the lazy-load image processing code. An authenticated attac...

EUVD-2026-62219

The Speed Optimizer – The All-In-One Performance-Boosting Plugin plugin for WordPress is vulnerable to Stored Cross-Site Scripting via Image Tag Attributes in all versions up to, and including, 7.8.0 due to insufficient input sanitization and output escaping. This makes it possible for...

PT-2026-78256

Name of the Vulnerable Software and Affected Versions Speed Optimizer versions prior to 7.8.1 Description Insufficient input sanitization and output escaping allow authenticated attackers with contributor-level access and above to perform Stored Cross-Site Scripting. This occurs via image tag...