CVE-2025-66111: Nelio Software Nelio Popups

Medium severity, CVSS 6.5. EPSS: 0.2% chance of exploitation in the next 30 days.

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Nelio Software Nelio Popups nelio-popups allows Stored XSS.This issue affects Nelio Popups: from n/a through <= 1.3.0.

Affected products

• Nelio Software Nelio Popups: up to and including 1.3.0

Published 2025-11-21. Last modified 2026-06-17.