A Hacker found XSS vulnerability in linkedin ,indiastudychannel and two other websites. Unfortunately, it is persistent XSS. Attacker can use this vulnerability and launch any malicious attack on users.
He reported about the vulnerability to those websites.
http://events.linkedin.com/scriptalerthiscript-37029
http://www.indiastudychannel.com/member/qwerty123.aspx
http://www.i-neighbours.org/index.php?zipcode=19046&hoodId=awsome
http://old.nabble.com/adding-%24%28%22%3Cscript%3E%22%29-node-actually-runs-the-script---correct-behavior--td23608124s27240.html
He reported about the vulnerability to those websites.