CVE-2026-8078
Medium
Description
Stored cross-site scripting in the global settings change log in Checkmk <2.5.0p5, <2.4.0p31, <2.3.0p48, and all 2.2.0 versions allows an administrator who can change global settings to store malicious HTML or JavaScript in changelog messages that executes in other users' browsers when they view the Activate Changes page or Audit log.
SeverityMedium
CVSS4.8
Exploit probability—
ProductCheckmk
PublishedJun 8, 2026
First seenJun 8, 2026
Weakness typeCWE-79Cross-site scripting (XSS)
How to fix
Vendor advisories
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| checkmk checkmk | 2.2.0, 2.3.0, 2.4.0, 2.5.0 | — |
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