Werk #6568: Fixed possible XSS on custom icon management page

Component	Setup
Title	Fixed possible XSS on custom icon management page
Date	Sep 13, 2018
Level	Trivial Change
Class	Security Fix
Compatibility	Compatible - no manual interaction needed
Checkmk versions & editions	1.6.0b1 Checkmk Community, Checkmk Pro, Checkmk Ultimate MT 1.5.0p5 Checkmk Community, Checkmk Pro, Checkmk Ultimate MT

Using icons with specific names it was possible to trigger an XSS on the icon administration page which only affected admin users.

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