Adobe Reader bug can trigger Firefox/Opera attack

A vulnerability has been found in Adobe Reader that could be used to trigger a  Universal Cross Site Scripting (UXSS) attack in either Firefox or Opera via the browser's plug-in. All but the newest version of Adobe Reader appear to be affected, as well as the newest versions of both Firefox and Opera. Current workarounds include upgrading to Adobe Reader 8 and using non-affected browsers like Internet Explorer 7 and Safari.