Exploit for CVE-2021-40906

Reflected XSS in CheckMK Management Web Console 1.5.0 to 1.5.0p25 in unauthenticated zone.

Published 4 Sep 2026Updated 4 Sep 202642 sources
CVSS 6.1 ✓ VERIFIED REFERENCE

What happened

Reflected XSS in CheckMK Management Web Console 1.5.0 to 1.5.0p25 in unauthenticated zone.

Affected versions

Unknown product: See original advisory Fixed: See vendor advisory.

Why it matters

This source correlation may provide earlier visibility while structured CVE metadata is still being updated.

Detection & mitigation

  • Review the original advisory and validate affected versions.
  • Apply vendor-provided updates or mitigations when available.

Public PoC references