source: http://www.securityfocus.com/bid/48951/info Skype is prone to an HTML-injection vulnerability because it fails to properly sanitize user-supplied input before using it in dynamically generated content. Successful exploits will allow attacker-supplied HTML and script code to run in the context of the affected browser, potentially allowing the attacker to steal cookie-based authentication credentials or to control how the site is rendered to the user. Other attacks are also possible. Skype 18.104.22.168 and prior are vulnerable; other versions may also be affected. The following sample input is available: "><iframe src='' onload=alert('mphone')> A video demonstrating the attack is available. Please see the references for more information.