It appears that you can abuse the tags to load anything.
On a habbo forum i visit (habboxforum.com), i was testing somthing doing
Code:
[img ]http://www.habboxforum.com/?style=1[/img ]
Code:
[img ]http://www.habbo.com/account/logout[/img ]
and they both worked.
Now i am a bit worried for my own forum & everyone else that this can easily be exploited.
Thanks, Dominic Lipscombe.