NIS2009 Safeweb able to prevent cross-site scripting (XSS) vulnerability in Twitter

Can anyone assist.

I just updated to NIS2009 version 16.5

Can I know if NIS 2009 Safeweb able to prevent cross-site scripting (XSS) vulnerability in Twitter.

Sorry, I am not a techinical person and not too sure if Safeweb can help prevent those exploitations.
or can NIS2009 stop it?

Thank you