Parameters being transferred per $_GET aren't sanitised properly.
Everyone can read any comment and its poster, although it should be readable only for superiors
http://name.tld/CGI-Bin/frame.html?Mehr=xxx&SUPER=x You can see, which supervisor the task was forwarded to and their UniqueIDs
Anyways, everything is acting really strange if you try to test something. Out of 10 tries, u get 8x All information you want to get 1x a weird name instead of the real one 1x a Errorpage like 404, "session timed out", blank site,...
For all these tests it is not necessary to be logged in. There might be a lot more bugs, but I can't look for them on a live system :(