ahmadbady has discovered a vulnerability in freeForum, which can be exploited by malicious people to conduct cross-site scripting attacks.
Input passed via the query string in the URL is not properly sanitised before being returned to the user. This can be exploited to execute arbitrary HTML and script code in a user's browser session in context of an affected site.
Successful exploitation requires that the target uses a browser that does not URL encode requests.
The vulnerability is confirmed in version 1.7. Other versions may also be affected.
Solution: Edit the source code to ensure that input is properly sanitised.
Provided and/or discovered by: ahmadbady
Original Advisory: http://www.securityfocus.com/bid/30509/info
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