Photographs said to show the 'High School Musical' Star naked and smooching the 'Zoey 101' actress is circulating online, more than three years after she was embroiled in a nude picture scandal.

In 2007, Vanessa had to apologise to fans after snaps of her posing provocatively  - with one showing her completely nude - hit gossip websites.

The new picture - which appeared on website Drunken Stepfather alongside other racy shots - is said to be taken at the same time as the first set and has been released as the brunette actress prepares to return to the screen in film 'Sucker Punch'.

The 22-year-old star - who broke up with Zac Efron in December after dating for four years - said she was "embarrassed over the situation" and regretted having "taken those photos" when they first came out.

A statement from Disney - who made the 'High School Musical' movies - also said: "Vanessa has apologised for what was obviously a lapse in judgment. We hope she's learned a valuable lesson."

However, the incident didn't put the beauty off considering stripping for a role, as she has said in the past that she would happily appear nude in a movie when she feels ready.

She said: "I will show nudity in a film when the time is right. Right now, I wouldn't feel comfortable doing it.

"When the time's right, if it's an amazing movie that I'm really passionate about and that's what it calls for, then we'll see."