Library 2.0 applications are openly accessible and dynamically generated. This makes more interesting but also bigger security risks. It lets libraries create and distribute content on social-networking sites such as Flickr, MySpace, Wikipedia, and YouTube. You can upload video, audio, photo, text, and other files for subsequent downloading by others.
However, hackers could include malicious code in the uploaded files. Hackers could use your browsers to initiate requests to your internal servers. This would let hackers access sensitive library data, even if protected by a firewall.
Library 2.0 is extending the scope of the cat-and-mouse game that security researchers have been playing with hackers. As you build up more defenses, people find more creative ways to get around them.
I would suggest the web site managers and servers managers to be regualrly updated with security patches specially with data servers.
with kind regards