A woman from Cambridge — Aubry Bracco — is among the finalists vying for the $1 million prize on “Survivor.’’ She’s is one of the last castaways still in the game, which took place in Kaoh Rong, Cambodia. The winner will be determined during the show’s two-hour season finale, which airs May 18 at 8 p.m. on CBS. Originally from New Hampshire, Bracco attended Phillips Exeter Academy and graduated from Brown University. Bracco lives in Cambridge and previously lived in Salem, where she worked as an editor for Patch.com. Another contestant who made it quite far along and now sits on the “Survivor’’ jury is Vermont native Julia Sokolowski. She’s currently a sophomore at Boston University.