Nothing is confirmed, the only person accusing her really is Amanda (her competitor on the show), and some nameless Reddit-poster dropped a long story about supposedly all the guys she fukked after the accusations. I think the Reddit post mentioned Moose and Mojo Rawley.
I kinda feel bad for Sara Lee though. She won a WWE contract but now has to deal with the whole world thinking she's a slut on top of nearly everyone in the show flat-out saying she shouldn't have won that contract. Like they couldn't even wait until a podcast or shoot interview, just said that shyt straight to her face. Congratulations Sara Lee!