Security Advisory

CVE-2026-20915

CVE vulnerability detail - eXtreme Datacenter Security Operations

Published 2026-03-31 13:51:02

Last updated 2026-03-31 17:15:54

Assigner Checkmk

CVSS score 8.5

State PUBLISHED

Description

Stored cross-site scripting (XSS) in Checkmk version 2.5.0 (beta) before 2.5.0b2 allows authenticated users with permission to create pending changes to inject malicious JavaScript into the Pending Changes sidebar, which will execute in the browsers of other users viewing the sidebar.

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