aka. spalex26
WordPress 2.3.3 is an urgent security release. 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. In addition to fixing this security flaw, 2.3.3 fixes a few minor bugs.
If you are interested only in the security fix, download the fixed version of xmlrpc.php and copy it over your existing xmlrpc.php.
WordPress › Blog » WordPress 2.3.3
I will just upload the new version of xmlrpc.php this time