HIGHCVE-2026-3466Published Modified CNA Checkmk
CVE-2026-3466: Cross-site scripting in dashlet title
Insufficient sanitization of dashboard dashlet title links in Checkmk 2.2.0 (EOL), Checkmk 2.3.0 before 2.3.0p46, Checkmk 2.4.0 before 2.4.0p25, and Checkmk 2.5.0 (beta) before 2.5.0 allows an attacker with dashboard creation privileges to perform stored cross-site scripting (XSS) attacks by tricking a victim into clicking a crafted dashlet title link on a shared dashboard.
Metrics
- CVSS v4.0
- 8.5
- Severity
- HIGH
- Fixed in
- 2.3.0p46
- Affected Products
- 1
Fix available
2.3.0p462.4.0p252.5.0
Affected packages
- Checkmk GmbH / Checkmk2.2.0 · < 2.3.0p46 (from 2.3.0) · < 2.4.0p25 (from 2.4.0) · < 2.5.0 (from 2.5.0b1)
CVSS Vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:A/VC:H/VI:H/VA:H/SC:N/SI:L/SA:NReferences