Hi, I'm David Ross, Security Software Engineer on the SWI team. I’m proud to be doing this guest post on the IE blog today to show off some of the collaborative work SWI is doing with the Internet Explorer team.
Today we are releasing some details on a new IE8 feature that makes reflected / “Type-1” Cross-Site Scripting (XSS) vulnerabilities much more difficult to exploit from within Internet Explorer 8. Type-1 XSS flaws represent a growing portion of overall reported vulnerabilities and are increasingly being exploited “for fun and profit.”
The number of reported XSS flaws in popular web sites has skyrocketed recently – MITRE has reported that XSS vulnerabilities are now the most frequently reported class of vulnerability. More recently, sites such as XSSed.com have begun to collect and publish tens of thousands of Type-1 XSS vulnerabilities present in sites across the web.