“Security experts are warning webmasters over a series of attacks targeting the WordPress and Joomla publishing platforms.”
WordPress is a website CMS (Content Management System) that’s wildly popular with the ‘pointy clicky’ crowd because it requires very little knowledge or understanding of web development to deploy a very pretty site. The downside to that ‘pointy clickiness’ though is that the code (that results from the pointing and clicking) is often bloated and requires permissions be somewhat limited on the web server directories. The end result of the massive amounts of code and [often] poor permissions is that the sites get compromised and used to propagate malware, viruses, etc.