Stored Cross-Site Scripting in Cozy Blocks Plugin for WordPress
CVE-2026-15333

6.4MEDIUM

Key Information:

Vendor

WordPress
Status
Cozy Blocks – Page Builder For Gutenberg Editor & Fse With 600+ Patterns, 58 Blocks & Templates
Vendor
CVE Published:
24 July 2026

What is CVE-2026-15333?

The Cozy Blocks – Page Builder for Gutenberg Editor & FSE plugin for WordPress has a vulnerability that allows authenticated users with contributor-level access and above to exploit insufficient input sanitization and output escaping in the 'cozyCustomFont' Block Attribute. This vulnerability permits them to inject arbitrary web scripts into pages, which can then be executed whenever a user accesses an affected page, posing a significant risk to site integrity and user safety.

Affected Version(s)

Cozy Blocks – Page Builder for Gutenberg Editor & FSE with 600+ Patterns, 58 Blocks & Templates 0 <= 2.2.11

References

https://www.wordfence.com/threat-intel/vulnerabilities/id...
https://plugins.trac.wordpress.org/browser/cozy-addons/ta...
https://plugins.trac.wordpress.org/browser/cozy-addons/ta...

CVSS V3.1

Score:
6.4
Severity:
MEDIUM
Confidentiality:
Low
Integrity:
Low
Availability:
Low
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Changed

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

Wordfence PRISM
.