Justin Bieber's videos hacked using YouTubes' Comment exploit

YouTube was compromised by attackers targeting pop singer Justin Bieber videos.“The simple exploit on YouTube has caused annoying pop ups and in some cases redirected users off of the website and to explicit websites like "One Man One Jar" video while another covers the screen in words "OMG Faggot". Messages claiming that Justin Bieber has […]

YouTube was compromised by attackers targeting pop singer Justin Bieber videos.

“The simple exploit on YouTube has caused annoying pop ups and in some cases redirected users off of the website and to explicit websites like "One Man One Jar" video while another covers the screen in words "OMG Faggot". Messages claiming that Justin Bieber has died was also posted.

Attacks were performed using malformed HTML to get past YouTube's checks for HTML sanitisation in comments. Some people report seeing users leaving comments using the marquee tag and JavaScript alert function to cause popups."

[Source]