Nude photos of reality star Kim reportedly appeared on 4chan and Reddit on Saturday (20 September), before being removed from the site according to TMZ.
High School Musical star Vanessa Hudgens is also said to have been targeted, as well as female American footballer Hope Solo, Nashville star Hayden Panettiere, singer Avril Lavigne and actress Mary-Kate Olson.
The previously unseen images are alleged to feature The Big Bang Theory actress Kaley Cuoco-Sweeting, too.
Although the photos were removed from the websites, they were trending on Twitter all day.
Earlier this month, hackers released private photos of '101' celebrities including Jennifer Lawrence, Kate Upton and Victoria Justice.
While some stars, including Hunger Games actress Jennifer, confirmed their pictures to be real, others denied their authenticity.
The authenticity of the new photos are unconfirmed, although Bring It On star Gabrielle Union has confirmed nude photos of her are real. The actress called the hackers, who accessed personal Apple iCloud accounts, "vultures" in a statement.
It is not the first time Kim has had to deal with private material being leaked to the public. In 2007, her sex tape with then-boyfriend Ray-J was published online.
The now married star filed a lawsuit against the tape's distributors, Vivid Enetrtainment, which was finalled dropped when she settled for a reported $5 million.
Would you look at the hacked photos online? Tell us what you think in the comment box below and you could win £50.
Reveal is now on Google Plus! Join us here for the latest pictures, fashion and celebrity news!