The latest news is that a Finland-based security firm has found a critical vulnerability in the core engine of the WordPress Content Management System (CMS).
What they have discovered is a Zero-Day flaw that could allow hackers to execute remote code on the webserver, taking over the CMS platform by simply adding comments on pages and posts.
An absolutely critical compromise, one that needs to be rectified quick smart.
In order to fix the security hole, upgrade WordPress to version 4.2.1 which will resolve the cross-site scripting vulnerability.
If you are not able to upgrade your WordPress version due to customisations, it has been advised to turn off all commenting within WordPress settings, however, ideally an upgrade must be actioned.
For an in depth update and a video demonstration of the actual vulnerability visit: http://thehackernews.com/2015/04/WordPress-vulnerability.html