Werk #14260: Fix XSS vulnerability in dashboard elements

Component	Setup
Title	Fix XSS vulnerability in dashboard elements
Date	Jun 1, 2022
Level	Trivial Change
Class	Security Fix
Compatibility	Compatible - no manual interaction needed
Checkmk versions & editions	2.0.0p26 Checkmk Raw (CRE), Checkmk Enterprise (CEE), Checkmk MSP (CME)

A persistent XSS attack was possible by injecting javascript payloads in strings displayed on various dashboards (e.g., service description).

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