Repair Joomla 3, 2.5 , 1.5 after a Code Injection [CVE-2015-8562]
The vulnerability, corrected with the update to Joomla 3.4.6, 3.4.7 and the patches for the 1.5 and 2.5 versions, is one of the most dangerous attacks targeting the Joomla! platform ever. Never had it happened that the same day a security release is published, 30% of the Joomla sites are attacked!