CVE-2026-14452: Checkmk 2.5.0 to before 2.5.0p15, 2.4.0 to before 2.4.0p38, 2.3.0 to before 2.3.0p51, 2.2.0

Affected technology

Checkmk · 2.5.0 to before 2.5.0p15, 2.4.0 to before 2.4.0p38, 2.3.0 to before 2.3.0p51, 2.2.0
Checkmk GmbH

Component: Not specified by the source

Attack conditions (Vendor/CNA, CVSS 4.0): Network (remote) · No privileges required · Active user interaction

What an attacker can do

An attacker can 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. Vendor/CNA’s CVSS 4.0 assessment (base score 8.6/10) rates confidentiality, integrity and availability impact as high.