Curtis, 54, called fellow actress Foster, 50, and she arrived before Curtis was taken by ambulance to a hospital Thursday morning. Curtis was treated for her wounds and was recovering at home, the celebrity news website said.
Curtis was a passenger in a black Yukon SUV when it crashed into a BMW in a highly trafficked area. An unidentified person involved in the crash suffered more serious injuries than Curtis and was also transported to a hospital, TMZ said.
The person's condition was not immediately known.
TMZ did not say whether any arrests were made or police citations issued.