Luke Welling reminds WordPress users that they need to update their installations to help keep them safe from a recent security issue that has come up.

If you have a WordPress blog it would be worth your time to install this update to 2.3.3, or at least replace xmlrpc.php. This is being actively exploited.

You can find out more about the exploit here on the WordPress website (including another issue with the WP_Forum plugin as well).