My male friends and myself have found a few chubby girls attractive over the years.
But they claim that the opposite is rarely the case. Girls do not find chubby guys attractive (I'm chubby btw and so far no girl has found me attractive but that might not be cuz of my weight).
Note, chubby means just overweight, like maybe 25 pounds overweight. Not morbidly obese or anything like that.