WordPress 2.2.1
June 21, 2007

WordPress 2.2.1 is available for download. Version 2.2.1 is a required upgrade because of the fixed bugs and security issues.
2.2.1 addresses the following vulnerabilities:
- Remote shell injection in PHPMailer
- Remote SQL injection in XML-RPC Discovered by Alexander Concha.
- Unescaped attribute in default theme
List of bugs fixed in 2.2.1 (widgets, xmlrpc, atom feeds) can be found here.
Related Links:
- WordPress 2.2.1
- Upgrading WordPress
- WordPress 2.2.1 Upgrade: changed files ZIP, changes diff, changed files list