Vonn purportedly appears in 22 of the nude images on the site, although the subject's face is only partially visible, so it's unclear whether the photos are definitely of her.
In several of them the woman is fully nude save for a pair of snow boots, apparently photographing herself in a body-length mirror from the front and back.
Other images in the set explicitly show the naked front and rear of what appears to be the same woman.
Of the two private images purporting to be of Woods, both also obscure his face - although the bottom half of the face in the images look strikingly similar to Woods'.
In one, the man is seen shirtless on a golf course, holding a club. In the other, he is totally nude, facing forward and apparently taking a photo in a full-length mirror.
American Idol winner and actress Katharine McPhee is also reportedly taking legal action. Photo / Getty Images
Other photos in the gallery include Vonn and Woods in fully-clothed selfies, and one image of the pair posing for a photo, looking close.
A video, purportedly also of Vonn in a bath, has also been leaked on the site, although the woman's face is glimpsed for only a moment.
Woods is reportedly furious about the leak and is demanding that the site remove the images or face his wrath.
Also firing up the engines for legal action is American Idol winner and actress Katharine McPhee.
She is seen topless and fully nude in several pictures on the site, with her face uncovered or only partially covered.
There are other, more graphic images purporting to be of McPhee, although no face is visible in any of them.
Photos of Miley Cyrus reportedly appear on the porn site. Photo / AP
Other galleries on the site are dedicated to grainy images of Miley Cyrus topless or fully nude, including two with her one-time New Zealand girlfriend, Victoria's Secret supermodel Stella Maxwell.
Kristen Stewart is also among the victims of the site, with photographs including topless images and one nude image of an unclothed, unidentifiable woman's lower half.
