Security researcher watt, has submitted on 23/05/2011 a cross-site-scripting (XSS) vulnerability affecting learn.linkedin.com, which at the time of submission ranked 16 on the web according to Alexa.
We manually validated and published a mirror of this vulnerability on 15/06/2011. It is currently unfixed.
If you believe that this security issue has been corrected, please send us an e-mail.