Johansson, who didn't name "The Disaster Artist" star by name said, "How could a person publicly stand by an organization that helps to provide support for victims of sexual assault while privately preying on people who have no power?"
"I want my pin back, by the way," she added. Johansson's rep has since confirmed that her comments were indeed directed squarely at Franco.
The dig was in reference to Franco's attendance at the Golden Globes two weeks ago where he wore a Time's Up pin. Franco was called out on Twitter by actress Ally Sheedy, and then several days later he was accused of sexual misconduct by five separate women.
The accusations also come during award season where Franco was expected to get an Oscar nominee. He skipped the Critic's Choice Awards after the Golden Globes ordeal, but is reportedly planning on attending Sunday's SAG Awards.