MyBB Hacks

Question for mybb forums user title change,
how can i change user title vith some exploit or vith coding? or maybe to give reputation to someone via coding or exp.,
please help me, ) thanks

So you're trying to change your user title at a MyBB forum which doesn't allow you to?

If an exploit was known, I think it would be patched fairly quickly.  Your best bet is to try to find one yourself.