A 32-year-old woman was stabbed multiple times in Brooklyn on Wednesday morning following a dispute with her boyfriend's ex-partner, police sources said. Officers from the 66th Precinct responded just after 10 a.m. on Oct. 1 to 9th Avenue and 47th Street in Borough Park, where they found the woman in her car with multiple stab wounds to her torso and left arm. Paramedics took the victim to Maimonides Medical Center in serious but stable condition.