Through my continuous website scanning it is clearly shown that an awful large amount of websites with all sort of jQuery libaries installed, have as a rule 2 to 5 vulnerable jQuery libraries installed. Some of these with active malware. An enormous amount of websites with WordPress CMS are open to threats because User Enumeration is possible (user and log-in proliferation) or Directory Indexing Enabled. This is an information leakage vulnerability that can reveal sensitive information regarding your site configuration or content. Furthermore plug-ins and themes may be vulnerable to attacks. Alas all such websites are wide open to attack.
Pro-active hosting with security in mind has not been around much on the Interwebs lately. I try to warn wherever I can when a website's security is endangered and may become under threat (compromise, defacement, XSS attacks, script injection etc. etc.). Website owners, -admins, hosters take these warnings at heart and go and protect your future visitors! Scan, update, patch and configure properly.
polonus (volunteer website security analyst and website error-hunter)