Security researcher xylitol, has submitted on 20/08/2008 a cross-site-scripting (XSS) vulnerability affecting www.diigo.com, which at the time of submission ranked 45221 on the web according to Alexa.
We manually validated and published a mirror of this vulnerability on 31/08/2008. It is currently unfixed.
If you believe that this security issue has been corrected, please send us an e-mail.
Vulnerable URL: http://www.diigo.com/user/hostmaster?domain=%27%22%3E%3C/title%3E%3Cscript%3Ealert(1337)%3C/script%3E%3E%3Cmarquee%3E%3Ch1%3EXSS%20by%20Xylitol%3C/h1%3E%3C/marquee%3E