Re: XSS vulnerabiilty testing and impact

Hi,

My question is if the user inputs are not displayed to any other users
ANYWHERE in the application, what's the impact of this XSS
vulnerability? Or are we still consider this as an XSS vulnerability?
Can malicious intruders still take advantage of this?

The real issue is that the application allows HTML injection that results
under certain circumstances to XSS. If there is no real impact, ie you
basically can attack only yourself, then it is just HTML injection in my
opinion (but should still be fixed). Other similar areas in the
application should also be checked for same issue as it could surface in a
more suitable place (from attacker point of view).

If you can trick a user into clicking a link containing the HTML injection
for that particular site (resulting in a normal page or error page) or if
it is viewable by everyone in a forum/your user details etc site content,
then I'd consider it an XSS vulnerability.

-m-


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