I was playing around with the units database and noticed that you could enter whatever you want into the url and it would show on the page, meaning I could execute javascript which can be pretty nasty.
I created an example link below; (Copy/paste into Firefox, Chrome blocks the execution because chrome is smart)
http://www.faforever.com/faf/unitsDB/un ... /script%3E
(This just prints "1337" to the screen and isn't malicious, but a lot of stuff could be done with this.)
Hope this gets fixed soon.
Thanks.