Zuckerberg, founder of the social networking site, had his personal profile “hacked” after it was revealed that new settings, intended to prevent inappropriate images could be exploited.
By reporting images that contained “nudity or pornography”, users could access private photos which could then be seen full size and downloaded.
The technique was used to obtain previously unseen photos of 27-year-old Facebook chief executive Zuckerberg, who is seen holding aloft a chicken, as well as several with partner Priscilla Chan.
He is also seen with US president Barack Obama and a number of friends at various engagements.
“The bug was a result of one of our most recent code pushes and was live for a limited period of time,” said a Facebook spokesman.
“Upon discovering the bug, we immediately disabled the system, and will only return functionality once we can confirm the bug has been fixed.
“The privacy of our user’s data is a top priority for us, and we invest lots of resources in protecting our site and the people who use it,” he added.
The error is a blow for the social network which has come under fire for the information it collects from its users.
Facebook has some 800 million active users across the globe and is expected to float on the stock exchange next year with an estimated $100 billion (€74bn) value.
Mark Zuckerberg has amassed a personal fortune of $17.5 billion after setting up the site in 2004.
A post on a BodyBuilding.com forum provided step-by-step instructions on how to pilfer a person’s private photos.
Curious people wasted little time downloading a shot of Mark Zuckerberg holding a chicken upside down, as well as other personal pictures posted by the Facebook founder.
Within hours, engineers at Facebook had plugged the security loophole.
Last month, thousands of users were sent pornographic spam, again prompting swift action by the social media site.
“Protecting the people who use Facebook from spam and malicious content is a top priority for us, and we are always working to improve our systems to isolate and remove material that violates our terms,” wrote Facebook spokesperson Andrew Noyes in a response to the attack.
In May, computer security firm Symantec found a security flaw in Facebook apps it claimed had exposed about 100,000 users’ personal information to potential leaks.
Zuckerberg was seen in about 14 photos released by the image site Imgur that showed him cooking with his girlfriend Priscilla Chan and holding a chicken upside down.
In another photo, he holds a plate of what appears to be battered chicken. It is reported Zuckerberg only eats meat he has killed himself.
The image site posted the photos under the headline, “It’s time to fix those security flaws Facebook.”
Picture: Pictures taken from Mark Zuckerberg’s private Facebook page were leaked due to a flaw in the social network’s security settings. The images show the 27-year-old billionaire holding a chicken upside down and holding a plate of battered chicken.