CVE-2026-14452

Open redirect and XSS via reset_url parameter

State: Published
Severity: 8.6 High
Published: Oct 16, 2026
Updated: Oct 16, 2026
Reserved: Jul 2, 2026

Description

Improper validation of the reset_url parameter of the Setup in-page search in Checkmk <2.5.0p15, <2.4.0p38, <2.3.0p51 and 2.2.0 (EOL) allows an attacker to execute arbitrary script in the session of an authenticated user with Setup access, or to redirect that user to an arbitrary external site, by tricking the user into opening a crafted URL and clicking the Reset button or submitting an empty search.

Scores

CVSS	Score	Vector	Source
4.0	8.6 High	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	Checkmk

Weaknesses

CWE-601 URL Redirection to Untrusted Site ('Open Redirect')

Affected Products

Product	Versions
CheckmkCheckmk GmbH	2.5.0 to before 2.5.0p15Affected 2.4.0 to before 2.4.0p38Affected 2.3.0 to before 2.3.0p51Affected 2.2.0Affected

References

https://checkmk.com/werk/22314vendor-advisory

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