CVE-2026-15950

The Cozy Blocks plugin for WordPress up to version 2.2.11 is vulnerable to Stored Cross-Site Scripting via the 'postMeta.font.size' block attribute due to insufficient input sanitization and output escaping. Authenticated attackers with contributor-level access or higher can inject arbitrary scripts that execute when a user visits the affected page.

The Cozy Blocks plugin for WordPress (cozy-addons) up to version 2.2.23 contains an Authorization Bypass Through User-Controlled Key vulnerability caused by incorrectly configured access control security levels. This allows bypassing authorization mechanisms.

The Cozy Blocks – Page Builder for Gutenberg Editor & FSE with 700+ Patterns, 58 Blocks & Templates plugin for WordPress is vulnerable to authorization bypass in all versions up to, and including, 2.2.17. This is due to the plugin not properly verifying that a user is authorized to perform an action. This makes it possible for unauthenticated attackers to retrieve the name, price, short description, image URL, permalink, stock status, and product type of draft, pending, private, and catalog-hidden WooCommerce products not intended to be publicly visible. The sidebarNonce value is emitted unconditionally into public page HTML by multiple block renderers with no login gate, allowing unauthenticated visitors to harvest a valid nonce and pass the only authentication check in the handler.

The Cozy Blocks plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the cozyHoverEffect attribute in versions up to and including 2.2.16. Authenticated attackers with contributor-level access can inject arbitrary scripts that execute whenever a user visits the affected page.

The Cozy Blocks plugin for WordPress up to version 2.2.11 is vulnerable to Stored XSS via the 'icon.view' block attribute. Authenticated attackers with contributor-level access can inject arbitrary scripts that execute when a user accesses the page.

The Cozy Blocks plugin for WordPress up to version 2.2.11 is vulnerable to Stored XSS via the 'cozyCustomFont' block attribute. Authenticated attackers with contributor-level access can inject arbitrary scripts that execute when a user accesses the page.

The Cozy Blocks plugin for CozyThemes has a basic XSS vulnerability due to improper neutralization of script-related HTML tags. This affects versions up to and including 2.1.29.