Joomla 1.5.x security vulnerability discovered

Yesterday a major issue was found in ALL JOOMLA! 1.5.x versions!

If you are running Joomla 1.5.0, 1.5.1, 1.5.2, 1.5.3, 1.5.4, 1.5.5 then you ARE VULNERABLE and should upgrade as soon as possible.  The security bug is not platform dependent.

The immediate availability of Joomla! 1.5.6 [Vusani] is the solution to the security bug. This is a quick turnaround security release to address a high level security issue and it is recommended all users upgrade immediately.

For more information about this exploit, click here to visit the Joomla Security Blog.