Stored Cross-Site Scripting Vulnerability in Cozy Blocks for WordPress
CVE-2026-75019

6.4MEDIUM

Key Information:

Vendor

WordPress
Status
Cozy Blocks – Page Builder For Gutenberg Editor & Fse With 700+ Patterns, 58 Blocks & Templates
Vendor
CVE Published:
25 August 2026

What is CVE-2026-75019?

The Cozy Blocks plugin for WordPress contains a vulnerability that allows authenticated users with contributor-level access or above to conduct Stored Cross-Site Scripting (XSS) attacks. This vulnerability arises from inadequate input sanitization and output escaping in the cozyHoverEffect block attribute. Specifically, attackers can inject arbitrary web scripts into pages, which then execute when users access these pages. The flaw persists even after using wp_kses_post for sanitization, due to the injection payload's construction that bypasses typical filtering techniques, enabling event-handler injection at the rendering phase.

Affected Version(s)

Cozy Blocks – Page Builder for Gutenberg Editor & FSE with 700+ Patterns, 58 Blocks & Templates 0 <= 2.2.16

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
.