AJAX

Researchers at Fortify Software have uncovered what they say is the first vulnerability to specifically affect Web 2.0 and AJAX applications.Developers in the past used Javascript for simple features like image rollovers and Web forms. But in the Web 2.0 world, Javascript is increasingly being used to transport data, and that's opening the door to security issues, said Brian Chess, chief scientist at Palo Alto, Calif.-based Fortify, which makes source-code analysis software.