Werk #2385: Fixed possible reflected XSS on all GUI pages where users can produce unhandled exceptions

Component User interface
Title Fixed possible reflected XSS on all GUI pages where users can produce unhandled exceptions
Date Jun 30, 2015
Checkmk Edition Checkmk Raw (CRE)
Checkmk Version 1.2.7i3
Level Trivial Change
Class Security Fix
Compatibility Compatible - no manual interaction needed

On pages where an authenticated user can trigger an exception which is then displayed to the user as "Internal error" dialog with details about the exception, it was possible for the user to inject javascript code which was executed in the context of the authenticated user.

This has been fixed that javascript/html code which is injected is being escaped correctly.

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