Wordpress reports:
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. We'd like to thank security
researchers Gennady
Kovshenin and Ryan
Dewhurst for reviewing our work.
- Two instances of cross-site scripting via shortcodes and post
content. These issues were discovered by Jon Cave of the WordPress
security team.
- A cross-site scripting vulnerability in the external library
Plupload. Thanks to the Moxiecode team for working with us on
this, and for releasing Plupload 1.5.5 to address this issue.