A vulnerability, which was classified as problematic, was found in Checkmk up to 2.1.0/2.2.0/2.3.0p38/2.4.0p13. This impacts an unknown function. The manipulation results in basic cross site scripting.
This vulnerability is known as CVE-2025-39663. It is possible to launch the attack remotely. No exploit is available.
You should upgrade the affected component.