Resize Image On The Fly and Cache - content plugin by s2software.it
Version 1.1.0 and likely all previous
Open folder permissions
Resolution: update to version 1.3.3
Existing users will need to manually fix the permissions of folder /images/cache to 755 or delete it in order to be recreated by the plugin with the proper permissions
Update notice: http://www.s2software.it/en/download/joomla-image-resize-cache
Please contact the developer for more information