CVE-2026-14452: high-severity vulnerability in Checkmk
Open redirect and XSS via reset_url parameter
Published
E-mail alert when it lands in KEV, gets a public PoC or its score goes up.
21Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 8.6epss 0.3%
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.
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
Affected products
Checkmk GmbH · CheckmkRelated CVEs — Checkmk
In the same product, most dangerous first.
CVE-2023-31209HIGHCommand injection via active checks and REST APIEPSS 1.1%CVE-2023-31208HIGHLivestatus command injection in RestAPIEPSS 1.0%CVE-2023-6157HIGHLivestatus injection in ajax_searchEPSS 0.9%CVE-2024-38865MEDIUMLivestatus command injection in RestAPIEPSS 0.9%CVE-2023-6156HIGHLivestatus injection in availability timelineEPSS 0.9%CVE-2025-1712HIGHArbitrary file write with vcrtraceEPSS 0.8%
References
https://checkmk.com/werk/22314