WordPress 3.0.2 is available and is a mandatory security update for all previous WordPress versions. Become traditional haiku has:

Fixed on day zero
One-click update Makes You Safe
This used to be hard

This maintenance release fixes a security issue moderate That Could allow a malicious user to gain Author-level Further access to the site, addresses a handful of bugs, and Provides Some additional security enhancements. Big thanks to Vladimir Kolesnikov and Responsible for Detailed disclosure of the security issue!

Download 3.0.2 Automatically update or from the Dashboard> Updates menu in your site’s admin area. You Should Immediately update even if you Do not have untrusted users.