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TITLE:
Invision Power Board Hexadecimal HTML Entities Script Insertion

SECUNIA ADVISORY ID:
SA20772

VERIFY ADVISORY:
http://secunia.com/advisories/20772/

CRITICAL:
Moderately critical

IMPACT:
Cross Site Scripting

WHERE:
>From remote

SOFTWARE:
Invision Power Board 2.x
http://secunia.com/product/3705/

DESCRIPTION:
A vulnerability has been reported in Invision Power Board, which can
be exploited by malicious people to conduct script insertion
attacks.

Input passed via hexadecimal HTML entities in a post isn't properly
sanitised before being used. This can be exploited to inject
arbitrary HTML and script code, which will be executed in a user's
browser session in context of an affected site when the malicious
user data is viewed.

The vulnerability has been reported in version 2.1.6 and prior for
the 2.1.x branch (before 2006-06-19).

SOLUTION:
The vulnerability has been fixed in an updated 2.1.6 version (from
2006-06-19).
http://forums.invisionpower.com/index.php?showtopic=219126

PROVIDED AND/OR DISCOVERED BY:
Reported by the vendor.

ORIGINAL ADVISORY:
http://forums.invisionpower.com/index.php?showtopic=219126

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