ownCloud vulnerability with maximum 10 severity score comes under “mass” exploitation | Ars Technica
“The vulnerability, which carries the maximum severity rating of 10, makes it possible to obtain passwords and cryptographic keys allowing administrative control of a vulnerable server by sending a simple Web request to a static URL”
I can’t stress this enough, keep your private and enterprise cloud behind a vpn. Especially if you are a part time Admin with limited resources. Sooner or later you will be hacked.