Stored Cross-Site Scripting in Gutenverse WordPress Plugin
CVE-2026-3002

6.4MEDIUM

Key Information:

Vendor

WordPress
Status
Gutenverse – WordPress Blocks, Page Builder & Site Editor
Vendor
CVE Published:
26 August 2026

What is CVE-2026-3002?

The Gutenverse plugin for WordPress, known for its FSE Blocks Addons & Ecosystem, contains a vulnerability that allows authenticated users with Contributor-level access or higher to inject arbitrary scripts into web pages. This exposure results from inadequate input sanitization and output escaping, presenting a risk when users access pages that have been compromised. This vulnerability affects all versions of the plugin up to and including 4.0.2, making it imperative for users to update to mitigate potential security threats.

Affected Version(s)

Gutenverse – WordPress Blocks, Page Builder & Site Editor 0 <= 4.0.2

References

https://www.wordfence.com/threat-intel/vulnerabilities/id...
https://plugins.trac.wordpress.org/browser/gutenverse/tag...
https://plugins.trac.wordpress.org/browser/gutenverse/tru...

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

Osvaldo Noe Gonzalez Del Rio (Os)
.