As many of you may already know, WordPress 2.3.3 has been released and includes an “urgent security” upgrade. According to WordPress “A flaw was found in our XML-RPC implementation such that a specially crafted request would allow any valid user to edit posts of any other user on that blog.” For many of you, this probably won’t be a problem. However, if you have multiple users, it would definitely be wise to upgrade.

Since the problem is apparently with just one file, WordPress has made the single file available for download. So, rather than upgrading your entire installation, you can simply upload the single file to patch the security risk. I’ve opted for that path and will probably wait to upgrade fully until 2.3.3 is available to upgrade through my control panel via Fantastico but it’s always a good idea to keep all your installations up to date. Countless blogs I’ve read have been hacked because they hadn’t kept up to date and I’d much rather learn from their experiences dealing with it, than my own.