Michael A. Peters napsal(a):
Martin Zvarík wrote:
What's the point?


The point is detailed on the (not fully complete) description page I just put up -

http://www.clfsrpm.net/xss/
Yeah, I just had a quick look...

"The browser will only execute script in source files from the white-listed domains and will disregard everything else, including embedded and inline scripts. "

wtf, can't you just take care of the INPUT and type strip_tags($_GET['my_name']) ??

This won't be implemented in any browser, can't be.



Namely, a lot of people who have web sites do not have the technical capability to prevent their site from being used as an XSS vector to attack other people.

By setting a simple security policy, browsers that implement CSP can see that something funny is being tried because the web site has instructed the browser it will not try to do that action from that domain.

By implementing CSP server side, even users without CSP enabled browsers (just about everyone currently) will have some measure of protection.

That's the point.



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