WordPress has released version 3.9.2 today which updates the following security vulnerabilities:
- Fixes a possible denial of service issue in PHP’s XML processing, reported by Nir Goldshlager of the Salesforce.com Product Security Team. It was fixed by Michael Adams and Andrew Nacin of the WordPress security team and this release was also coordinated with the Drupal security team.
- Fixes a possible but unlikely code execution when processing widgets (WordPress is not affected by default), discovered by Alex Concha of the WordPress security team.
- Prevents information disclosure via XML entity attacks in the external GetID3 library, reported by Ivan Novikov of ONSec.
- Adds protections against brute attacks against CSRF tokens, reported by David Tomaschik of the Google Security Team.
- Contains some additional security hardening, like preventing cross-site scripting that could be triggered only by administrators.
Big Mountain makes security a top priority and has taken steps to backup all WordPress sites and update all WordPress installations on our servers to the most recent 3.9.2 release. If you experience any trouble with your site after the recent update, please contact Big Mountain and we can troubleshoot and/or restore the previous backup. Thank you.