CVE-2026-14452 Checkmk - Stored XSS & Open Redirect

Checkmk <2.5.0p15, <2.4.0p38, <2.3.0p51, and 2.2.0 contain a stored XSS and open redirect caused by improper validation of the reset_url parameter in Setup in-page search, letting attackers execute scripts or redirect authenticated users with Setup access, exploit requires user interaction.

CVSS base score 8.6 /10
High
CISA KEV
Not listed
Public exploit
None known
Authentication
Not required
View the NVD record ↗

Details

Type
Stored Xss
Impact
Client Script Exec
CVSS vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:L/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Published
16 October 2026
Updated
16 October 2026
Weakness
CWE-601

Vendor fix

Update to versions 2.5.0p15, 2.4.0p38, 2.3.0p51 or later.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

References

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