[SA19096] Aztek Forum Message Body Script Insertion Vulnerability

TITLE:
Aztek Forum Message Body Script Insertion Vulnerability

SECUNIA ADVISORY ID:
SA19096

VERIFY ADVISORY:
http://secunia.com/advisories/19096/

CRITICAL:
Moderately critical

IMPACT:
Cross Site Scripting

WHERE:
>From remote

SOFTWARE:
Aztek Forum
http://secunia.com/product/4254/

DESCRIPTION:
lorenzo has discovered a vulnerability in Aztek Forum, which can be
exploited by malicious people to conduct script insertion attacks.

Input passed in the message body when posting a new message isn't
properly sanitised before being saved. This can be exploited to
execute arbitrary HTML and script code in a user's browser session in
context of a vulnerable site when the user clicks on the "Citer" or
"Editer" button when viewing the message.

Example:
</textarea>'"><script>[code]</script>

The vulnerability has been confirmed in version 4.0. Other versions
may also be affected.

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

PROVIDED AND/OR DISCOVERED BY:
lorenzo

ORIGINAL ADVISORY:
http://milw0rm.com/id.php?id=1547

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