WordPress 3.6.1 is a security release for all previous WordPress versions and we strongly encourage you to update your sites immediately. It addresses three issues fixed by the WordPress security team:
- Block unsafe PHP unserialization that could occur in limited situations and setups, which can lead to remote code execution.
- Prevent a user with an Author role, using a specially crafted request, from being able to create a post “written by” another user.
- Fix insufficient input validation that could result in redirecting or leading a user to another website.
There are additional minor security updates associated with this release.
We highly recommend upgrading as soon as possible.
