WordPress 3.5.1, now available for download, is a maintenance and security release for all previous versions that fixes 37 bugs.
WordPress 3.5.1 also addresses the following security issues:
- A server-side request forgery vulnerability and remote port scanning using pingbacks. This vulnerability, which could potentially be used to expose information and compromise a site, affects all previous WordPress versions. This was fixed by the WordPress security team.
- Two instances of cross-site scripting via shortcodes and post content.
- A cross-site scripting vulnerability in the external library Plupload.