CVE-2026-15393
MediumCVSS 6.4Summary
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.
Risk Assessment
An attacker can inject malicious scripts that execute in the browser of any visitor, potentially leading to session theft, redirects, or data theft.
Recommendation
Immediately update the Cozy Blocks plugin to the latest available version that contains the fix for this vulnerability.
Other vulnerabilities in Cozy Blocks
See all- CVE-2026-75019Medium
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.
- CVE-2026-15950Medium
The Cozy Blocks plugin for WordPress is vulnerable to stored XSS via the 'layoutCircle.alignment' block attribute. Attackers with contributor-level access can inject arbitrary scripts that execute when a user visits the page.
- CVE-2026-15334Medium
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.
- CVE-2026-15333Medium
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.
Original NVD description (English source)
The Cozy Blocks – Page Builder for Gutenberg Editor & FSE with 600+ Patterns, 58 Blocks & Templates plugin for WordPress is vulnerable to Stored Cross-Site Scripting via 'postMeta.font.size' Block Attribute in all versions up to, and including, 2.2.11 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.