Description
WordPress is prone to an unauthorized access vulnerability. Attackers can exploit this issue to edit other users' posts. Successfully exploiting this issue may lead to other attacks. WordPress versions prior to 2.3.3 are vulnerable.
Remediation
Update to WordPress version 2.3.3 or latest
References
http://www.village-idiot.org/archives/2008/02/02/wordpress-232-exploit-confirmed/
http://www.securiteam.com/unixfocus/5HP010KNFK.html