CVE-2026-77365: Optimole – Optimize Images | Convert WebP & Avif | Cdn & Lazy Load | Image Optimization

High severity, CVSS 7.2. EPSS: 0.5% chance of exploitation in the next 30 days.

The Optimole – Optimize Images | Convert WebP & AVIF | CDN & Lazy Load | Image Optimization plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'a' (above_fold_images) parameter in all versions up to, and including, 4.2.10 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.

Affected products

• Optimole Optimole – Optimize Images | Convert WebP & Avif | Cdn & Lazy Load | Image Optimization: up to and including 4.2.10

Published 2026-08-28. Last modified 2026-08-28.