CVE-2026-4658

The Essential Blocks – Page Builder Gutenberg Blocks, Patterns & Templates plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the className, classHook, and blockId attributes in the Add to Cart block essential-blocks/add-to-cart in all versions up to, and including, 6.0.4. This...

CVE-2026-4658: Improper Neutralization of Input During Web Page Generation

The Essential Blocks – Page Builder Gutenberg Blocks, Patterns & Templates plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the className, classHook, and blockId attributes in the Add to Cart block essential-blocks/add-to-cart in all versions up to, and including, 6.0.4. This...