Werk #13193: XSS in report editing

Component Reporting & Availability
Title XSS in report editing
Date Sep 24, 2021
Checkmk Editon Checkmk Enterprise (CEE)
Checkmk Version 2.1.0i1 2.0.0p12 1.6.0p26
Level Trivial Change
Class Security Fix
Compatibility Compatible - no manual interaction needed

It was possible to Inject HTML code in various Content elments. This could also be used in shared reports.

CVSS: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H 9.0 Affected Versions: all below Workarounds: Disallow users to customize reports (Set 'General Permissions' > 'Customize reports and use them' to no) Exploit detections: Check `var/check_mk/web/*/user_reports.mk` for html specialchars.

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