CVE-2025-39508: Nasatheme Nasa Core

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 Nasa Core nasa-core allows Reflected XSS.This issue affects Nasa Core: from n/a through <= 6.4.4.

Affected products

• Nasatheme Nasa Core: up to and including 6.4.4

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