VULNERABILITY INTELLIGENCE

CVE-2025-64999

CVSS score7.3 HIGH

EPSS probability0.17%

CISA KEVNot currently listed

Published2026-02-26

Last modified2026-06-17

Description

Improper neutralization of input in Checkmk versions 2.4.0 before 2.4.0p22, and 2.3.0 before 2.3.0p43 allows an attacker that can manipulate a host's check output to inject malicious JavaScript into the Synthetic Monitoring HTML logs, which can then be accessed via a crafted phishing link.