Werk #11501: Fix possible XSS using titles of views

Component	User interface
Title	Fix possible XSS using titles of views
Date	Oct 20, 2020
Level	Trivial Change
Class	Security Fix
Compatibility	Compatible - no manual interaction needed
Checkmk versions & editions	2.0.0i1 Checkmk Raw (CRE), Checkmk Enterprise (CEE), Checkmk MSP (CME) 1.6.0p19 Checkmk Raw (CRE), Checkmk Enterprise (CEE), Checkmk MSP (CME)

Authenticated users that are allowed to configure and share custom views could inject arbitrary JS code to all users which are permitted to view this view.

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