WordPress 4.1.2 was released on Tuesday to address a critical security vulnerability. Sites configured for auto updates will be updated over the next day or so, but you might want to consider installing the update via the dashboard right now.

In related news, security researchers at Sucuri just published a list of popular WordPress plugins that contain serious XSS vulnerabilities. Most of these plugins already have updates addressing the issue. Check your WordPress sites for these plugins, and either update or disable them.