Description
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.
CVSS 5.4EPSS 0.13999999999999999%Risk 0.55
View source- Published
- 2026-06-08 13:16:33
- Affected versions
- cannotmatch
- Type
- Installed app
- Last modified
- 2026-07-23 07:10:00
- Vector
- CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N