CVE-2026-8833 (GCVE-0-2026-8833)
Vulnerability from cvelistv5
Published
2026-06-08 12:06
Modified
2026-06-08 13:02
Severity ?
8.5 (High) - CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:A/VC:H/VI:H/VA:H/SC:N/SI:L/SA:N
CWE
  • CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Summary
Improper neutralization of HTML-encoded characters in the URL validation function in Checkmk <2.5.0p5, <2.4.0p31, <2.3.0p48, and all 2.2.0 versions allows an authenticated user to bypass URL validation and inject malicious URLs such as javascript: URIs, resulting in cross-site scripting when another user interacts with the crafted link.
References
Impacted products
Vendor Product Version
Checkmk GmbH Checkmk Version: 2.5.0   ≤
Version: 2.4.0   ≤
Version: 2.3.0   ≤
Version: 2.2.0   ≤
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