Dunno if this is an issue, I just noticed the ID in url and wondered what would happen if I change it. :-) Fortunately, you must be logged in to make this work...
I will forbid this in rules (any unintended use/hacking of the websystem), but might still be worth fixing.
Loging as admin (on anyone else) on kolecko.sifrovacky.cz brings you to page: https://kolecko.sifrovacky.cz/tymy/5
Changing the url to for example https://kolecko.sifrovacky.cz/tymy/10 will show information about other team (in this case Omnes Virtutes ).
Dunno if this is an issue, I just noticed the ID in url and wondered what would happen if I change it. :-) Fortunately, you must be logged in to make this work... I will forbid this in rules (any unintended use/hacking of the websystem), but might still be worth fixing.