CVE-2025-64999 — Cross-site scripting in HTML logs of Synthetic Monitoring test services
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 mali…
Published: 2026-02-26 · CVSS: 7.3 · CVSS 4.0
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.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7