The "plaNetStat" script gives an admin information about how many user have visited the website, which browser they have used and all that kind of stuff.

http://www.planetc.de

It is also possible to download the log files to have a look at them locally.
The creators of the script suggest that everyone protects the admin folder with .htaccess.
Nevertheless not everyone does!

Therefore everyone can download arbitrary files:

...planetstat/admin/logfiles.php?download=[PATH]

This often helps to get a foothold for further activities.
Maybe even other things are possible but I had no time to do further research so far.

tbs