TITLE:
Metisware Instructor Task Script Insertion Vulnerability

SECUNIA ADVISORY ID:
SA19385

VERIFY ADVISORY:
http://secunia.com/advisories/19385/

CRITICAL:
Moderately critical

IMPACT:
Cross Site Scripting

WHERE:
>From remote

SOFTWARE:
Metisware Instructor 1.x
http://secunia.com/product/8945/

DESCRIPTION:
r0t has reported a vulnerability in Metisware Instructor, which can
be exploited by malicious people to conduct script insertion
attacks.

Input passed to the "vchTaskHeader" parameter in
"/MyTasks/PersonalTaskCreate.asp" is not 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 1.3. Other versions
may also be affected.

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

Restrict access to "/MyTasks/PersonalTaskCreate.asp" to trusted
users.

PROVIDED AND/OR DISCOVERED BY:
r0t

ORIGINAL ADVISORY:
http://pridels.blogspot.com/2006/03/metisware-instructor-xss-vuln.html

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