Re: XSS bypass in PHPNuke - FIX ?

[Paul Laudanski <zx () castlecops com>]

On Tue, 20 Dec 2005, SecurityReason - sp3x wrote:

> Hi Paul
> Do you have any idea to do fix or update filter of phpnuke against XSS that discovered my friend.
> We were working with chaserv from nukefixes.com on this fix...
> But as you wrote on bugtraq the Fix is not very good...
>
> Any idea for good fix ??
>
> BTW : http://castlecops.com  is  working with phpnuke team ??
> just asking :)

Hi'ya, as per my previous post you can use htmlspecialchars or 
htmlentities.  So in this case take the query and run it through 
htmlspecialchars:

$query = htmlspecialchars($query);

... _before_ you do anything with it like displaying the query back to the 
user.

-- Paul Laudanski, Microsoft MVP Windows-Security 
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