CVE-2025-39578: Cyberchimps Responsive Blocks

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 CyberChimps Responsive Blocks responsive-block-editor-addons allows Stored XSS.This issue affects Responsive Blocks: from n/a through <= 2.0.2.

Affected products

• Cyberchimps Responsive Blocks: up to and including 2.0.2

Published 2025-04-16. Last modified 2026-06-17.