CVE-2026-33276

XSS in Unified Search via Unescaped Host/Service Names

CVSS 8.6 HIGHEPSS 0.1%CWE-79

Vexday Risk Score

21Low

SSVC decision (CISA)

Track

No exploitation signal → monitor

CVSS 8.6EPSS 0.1%KEV nãoPoC —Nuclei —Metasploit —Patch —

Lifecycle

31 Mar 2026Published on NVD

Recommendation: Monitor — no exploitation signal at the moment.

Stored cross-site scripting (XSS) in Checkmk 2.5.0 (beta) before 2.5.0b2 allows authenticated users with permission to create hosts or services to execute arbitrary JavaScript in the browsers of other users performing searches in the Unified Search feature.

CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:H/VI:H/VA:H/SC:N/SI:L/SA:N

Affected products

Checkmk GmbH · Checkmk

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References

https://checkmk.com/werk/19525