PayPal is under attack as well. eBay seems to have no sure mechanism in place to accept security warnings, etc, so researchers have taken the drastic step of publishing straight away. However, I think it would be mistaken to say that eBay and PayPal are unaware of the problems or not taking action. At least I hope they are. You could argue that I have too much faith in corporate nature, but I don't see how I can be wrong.
Anyway; watch out. If you are forced to use eBay and PayPal in the next few days, make sure there is nothing unseemly in the appearance of the transaction. Jayna and I are sitting things out and won't go back into commerce using these facilities until things are more in hand. That might be something for you to consider, as well.