WordPress 2.8.2 fixes an XSS vulnerability. Comment author URLs were not fully sanitized when displayed in the admin. This could be exploited to redirect you away from the admin to another site. Download 2.8.2 or automatically upgrade from the Tools->Upgrade page of your blog’s admin.
The above text was taken directly from the WordPress.org blog in regards to the newest update released of the WordPress, a popular blogging/content management system. AvekHost.com clients have the ability to perform an instant update which will be seen on the top of your WP Admin screen when logging in to WP-ADMIN. If you required any assistance please do not hesitate to let us know as we would be more than happy to assist.