CVE-2025-57900: Ataur R Gutenkit

Medium severity, CVSS 6.5. EPSS: 0.3% chance of exploitation in the next 30 days.

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Ataur R GutenKit gutenkit-blocks-addon allows Stored XSS.This issue affects GutenKit: from n/a through <= 2.4.2.

Affected products

• Ataur R Gutenkit: up to and including 2.4.2

Published 2025-09-22. Last modified 2026-06-17.