09/06/2007 at 06:00 PM EDT
Vanessa Hudgens is addressing a nude photo of herself that has hit the Internet, confirming that it's her and calling the matter "unfortunate."
"This was a photo which was taken privately," a rep for the High School Musical
star tells TMZ.com
. "It is a personal matter and it is unfortunate that this has become public."
The picture of Hudgens, 18, surfaced on several Web sites Thursday.
Hudgens is currently dating her HSM
costar, Zac Efron.