HGG Community Forums

Today I noticed that my forum photo has been changed but I did not change it myself. I changed it a few months ago to a photo of a gray thoroughbred, but now it is showing as a headshot of a bay horse. I have looked all over and can not figure out how this happened. Under the "Activity" tab, it says that I changed my profile picture in January and shows the picture of a bay horse, then it shows that same picture as another member's profile, but this was changed recently. Is it possible for someone to upload their photo to another member's forum account? I have removed the photo for now and it has not shown up again. I'm probably missing something really obvious.