CDATA is not handled properly for XMLConfiguration

The XMLConfiguration does not handle XML CDATA escape properly. For example:

<?xml version="1.0" encoding="UTF-8" ?>
<abc>
<def>
<ghi><Unable to render embedded object: File ([CDATA[~) not found.@#$%^&]]></ghi>
</def>
</abc>

will give error message:
The element type "ghi" must be terminated by the matching end-tag "</ghi>".

I expect that normal escaping should occur with the standard XML CDATA escape.