PT-2026-29251 · Checkmk · Checkmk
CVE-2026-20915
·
Published
2026-03-31
·
Updated
2026-07-25
CVSS v4.0
8.5
High
| Vector | AV:N/AC:L/AT:N/PR:H/UI:P/VC:H/VI:H/VA:H/SC:N/SI:L/SA:N |
Name of the Vulnerable Software and Affected Versions
Checkmk versions prior to 2.5.0b2
Description
A stored cross-site scripting issue exists in Checkmk. Authenticated users with permission to create pending changes can inject malicious JavaScript into the Pending Changes sidebar. This injected script will then execute in the browsers of other users who view the sidebar. The vulnerable component is the Pending Changes sidebar.
Recommendations
Update to version 2.5.0b2 or later.
Exploit
Fix
XSS
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Weakness Enumeration
Related Identifiers
Affected Products
Checkmk