CVE-2026-33276

MEDIUM

XSS in Unified Search via Unescaped Host/Service Names

Title source: cna

Description

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.

References (1)

Core 1

Core References

https://checkmk.com/werk/19525

Scores

CVSS v3 5.4

EPSS 0.0014

EPSS Percentile 4.0%

Attack Vector NETWORK

CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

CISA SSVC

Vulnrichment

Exploitation none

Automatable no

Technical Impact total

Details

CWE

CWE-79

Status published

Products (2)

checkmk/checkmk 2.5.0 b1

Checkmk GmbH/Checkmk 2.5.0b1 - 2.5.0b2

Published Mar 31, 2026

Tracked Since Mar 31, 2026