We strongly recommend you to immediately update your sites to version 2.5.14 or 3.1.5. Update the CMS Joomla, you can automatically from the admin area of the site, or download updates from official site .

Also found a similar vulnerability in Joomla version 1.5.h, whose support is currently stopped. However, the community and it is lined with fix .

If you need assistance in updating your site, you can always contact our specialists.