If you or someone you know is using the Vistered Little theme from Windy Road, a vulnerability has been found and you need to upgrade your theme to version 1.7.3 as soon as possible (or revert back to the another theme for the time being and delete the vistered little theme folder). The latest version that fixes the bug/vulnerability is 1.7.3 while versions 1.6a through 1.7.2 are all vulnerable.
Thanks for the heads-up. I do use this on one of the blogs I work on, and plan to upgrade asap.
It rocks man