For anybody running WordPress or Drupal that is not up-to-date I would suggest you review this article:
If you're running a newer version of WordPress and have not disabled automatic updates - this patch was already pushed to you by WordPress prior to the above article being put online.
If you are running an older version of WordPress or you have automatic updates off - we have patched this vulnerability on all installations network wide. Do understand that while we do not wish to modify user data unless absolutely necessary we felt it absolutely necessary in this case to ensure server stability and to keep all clients online.
In the event that you are running a version that is too old to be patched with the vendor-supplied patch, we will be getting in touch with you very soon.
If you have any questions about this, by all means, let us know.