CVE-2025-49873: Nasatheme Elessi

High severity, CVSS 7.1. EPSS: 0.3% chance of exploitation in the next 30 days.

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in NasaTheme Elessi elessi-theme allows Reflected XSS.This issue affects Elessi: from n/a through <= 6.3.9.

Affected products

• Nasatheme Elessi: up to and including 6.3.9

Published 2025-06-20. Last modified 2026-06-17.