CVE-2025-53349: Laborator Kalium

High severity, CVSS 7.1. EPSS: 0.2% chance of exploitation in the next 30 days.

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Laborator Kalium kalium allows Reflected XSS.This issue affects Kalium: from n/a through <= 3.18.3.

Affected products

• Laborator Kalium: up to and including 3.18.3

Published 2025-11-06. Last modified 2026-10-07.