- Blocking server-side request forgery attacks, which could potentially enable an attacker to gain access to a site.
- Disallow contributors from improperly publishing posts, reported by Konstantin Kovshenin, or reassigning the post’s authorship, reported by Luke Bryan.
- An update to the SWFUpload external library to fix cross-site scripting vulnerabilities. Reported by mala and Szymon Gruszecki.
- Prevention of a denial of service attack, affecting sites using password-protected posts.
- An update to an external TinyMCE library to fix a cross-site scripting vulnerability. Reported by Wan Ikram.
- Multiple fixes for cross-site scripting. Reported by Andrea Santese and Rodrigo.
- Avoid disclosing a full file path when a upload fails. Reported by Jakub Galczyk.
Since hackers like to exploit unpatched vulnerabilities in software, and WordPress is a software, it’s crucial that you update your WordPress install ASAP. It’s time to back up your files and database and hit that “Update now” link.
For more information on all the changes in this latest WordPress release, check out the release notes in WordPress Codex.