Due to a security problem within the message module we release this version. Within version 4.1.0 to 4.1.12 it is possible to view a message if you know the exact uuid of the message. It's not that easy to get a valid uuid of a system but if you get one you were able to view the message without the right to do so.
We recommend you to read our announcements for version 4.1 if you have not done before.
A full list of all new features and bugfixes can be found in our issue tracker for version 4.1 and 4.1.13!
If you are new to Admidio and want to install it on your webpage than the following wikipage could help: Install Admidio
The following wiki pages maybe interesting on an Update: Update Admidio