The so many extensions that are available for Joomla is good news for all that use this system to build our web sites. Taking apart the standard security considerations we touched upon at the end of this article the amount of existing alternatives is what makes it big and really useful.
However, by design, not all types of extensions are the same. We know that there exist in three classes: components, modules and plugins, each contributing differently to the framework. They are so easy to install, that is is easy to turn use into abuse. And this is not a problem for components or modules or, at least, not a big one but in the case of plugins it may divert into a 'pluginitis', a serious disease of our system that can make it get sick.