Website publishers using the popular free and open source WordPress content management system (CMS) woke up this morning to find that their sites had been upgraded to version 4.2.2. Users who’s sites somehow missed being automatically upgraded are urged to update immediately, as this update addresses several important security issues. According to Wordfence, maintainers of a popular WordPress security plugin, this release fixes one recently discovered vulnerability and further hardens a security issue that was addressed in version 4.2.1.