I’m sorry this happened. I think she could survive, cleaning the wounds is really, really important though as LBJ says, since cats have some nasty bacteria in their mouths. Enrofloxacine can be used with rabbits (one brand name is Baytril), but it’s not the best choice for cat bites. Penicillin seems to be a better choice, but MUST be given in subcutaneous injection, NEVER orally. When I personally was badly bitten by a cat I got amoxicillin, but that antibiotic also MUST be given as injections to rabbits, it is fatal if given orally. On scratches and small wounds, fucidine cream can be used but it wont kill all the bacteria present in a cat’s mouth. The problem with cat bites is that cats’ teeth are shaped like needles, so they “inject” backteria into the body and then the skin heals over, trapping the bacteria inside where they can fester in peace.
I found this, it has some useful info: http://www.justanswer.com/veterinary/2pxzy-hi-there-my-rabbit-attacked-cat-nights-ago.html
Here is Medirabbit’s list of rabbit safe antibiotics: http://www.medirabbit.com/Safe_medication/Antibiotics/Safe_antibiotics.htm
If you can find a vet it’d be good to have this list with you so you can double check what the vet wants to give your rabbit. Some antibiotics will kill a rabbit esp if given orally.