Great to see a security update for WordPress 3.5.2

WordPress 3.5.2 Maintenance and Security Release. This release adds a number of security fixes including:

• 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. (Developers: More on SWFUpload here.)
• 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.

Additionally: Version 3.5.2 fixes seven security issues:

• Server-Side Request Forgery (SSRF) via the HTTP API.
• Privilege Escalation: Contributors can publish posts, and users can reassign authorship.
• Cross-Site Scripting (XSS) in SWFUpload.
• Denial of Service (DoS) via Post Password Cookies.
• Content Spoofing via Flash Applet in TinyMCE Media Plugin.
• Cross-Site Scripting (XSS) when Uploading Media.
• Full Path Disclosure (FPD) during File Upload.

Additional security hardening includes:

• Cross-Site Scripting (XSS) (Low Severity) when Editing Media. CVE-2013-2201.
• Cross-Site Scripting (XSS) (Low Severity) when Installing/Updating Plugins/Themes. CVE-2013-2201.
• XML External Entity Injection (XXE) via oEmbed. CVE-2013-2202.

All of our existing client installations will automatically be updated.