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TITLE:
PHP-Fusion "FUSION_QUERY" Cross-Site Scripting Vulnerability

SECUNIA ADVISORY ID:
SA25907

VERIFY ADVISORY:
http://secunia.com/advisories/25907/

CRITICAL:
Less critical

IMPACT:
Cross Site Scripting

WHERE:
>From remote

SOFTWARE:
PHP-Fusion 6.x
http://secunia.com/product/5291/

DESCRIPTION:
nights_shadow has discovered a vulnerability in PHP-Fusion, which can
be exploited by malicious people to conduct cross-site scripting
attacks.

Input passed via the URL to various pages is used in maincore.php to
define the constant "FUSION_QUERY", which is not properly sanitised
in infusions/shoutbox_panel/shoutbox_panel.php before being returned
to a 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 victim is logged in or that
guest posts to the shoutbox are enabled.

The vulnerability is confirmed in version 6.01.10. Other versions may
also be affected.

SOLUTION:
Edit the source code to ensure that input is properly sanitised.

PROVIDED AND/OR DISCOVERED BY:
nights_shadow

ORIGINAL ADVISORY:
http://www.xssed.com/advisory/60/PHP-FUSION_FUSION_QUERY_Cross-Site_Scripting_Vulnerability/

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