Not long ago WordPress released its version 2.8.1, but there has been another update. WordPress 2.8.2 was released today as a security patch to fix the possible exploit.
WordPress 2.8.1 fixes many bugs and improves security for plugin administration pages. In the previous version, admin pages added by certain plugins could be viewed by unprivileged users, resulting in information being leaked. Not all plugins are vulnerable to this problem, but WordPress staff and WPBeginner advise you to upgrade to 2.8.1 to be safe.