Joomla is one of the CMS that I like and testing it for vulnerability would be fun using OWAP’s joomscan. Just in case you wanted it on your system you can download it at sourceforge Joomscan is a vulnerability scanner for websites using joomla CMS. To install it on ubuntu you can extract it on a directory that you like like the /opt directory. After extracting make it executable and the db text file which is needed for the update:

