CVE-2026-14452 PUBLISHED

Open redirect and XSS via reset_url parameter

Assigner: Checkmk
Reserved: 02.07.2026 Published: 16.10.2026 Updated: 16.10.2026

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.

Metrics

CVSS 4.0

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
CVSS Score: 8.6

Exploitability Metrics		Vulnerable System Impact Metrics		Subsequent System Impact Metrics
Attack Vector	Network	Confidentiality	High	Confidentiality	None
Attack Complexity	Low	Integrity	High	Integrity	Low
Attack Requirements	None	Availability	High	Availability	None
Privileges Required	None
User Interaction	Active

CVSS 4.0

Product Status

Vendor	Checkmk GmbH
Product	Checkmk
Versions	Default: unaffected affected from 2.5.0 to 2.5.0p15 (excl.) affected from 2.4.0 to 2.4.0p38 (excl.) affected from 2.3.0 to 2.3.0p51 (excl.) Version 2.2.0 is affected

References

https://checkmk.com/werk/22314

Problem Types

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

Impacts

CAPEC-63: Cross-Site Scripting (XSS)