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TITLE:
E-Store Kit-2 PayPal Edition Cross-Site Scripting and File Inclusion

SECUNIA ADVISORY ID:
SA14723

VERIFY ADVISORY:
http://secunia.com/advisories/14723/

CRITICAL:
Highly critical

IMPACT:
Cross Site Scripting, System access

WHERE:
>From remote

SOFTWARE:
E-Store Kit-2 PayPal Edition
http://secunia.com/product/4854/

DESCRIPTION:
Diabolic Crab has reported two vulnerabilities in E-Store Kit-2
PayPal Edition, which can be exploited by malicious people to conduct
cross-site scripting attacks and potentially compromise a vulnerable
system.

1) Input passed to the "main" and "menu" parameters in "catalog.php"
isn't properly verified, before it is used to include files. This can
be exploited to include arbitrary files from external and local
resources.

2) Input passed to the "txn_id" parameter in "downloadform.php" isn't
properly sanitised before being returned to the user. This can be
exploited to execute arbitrary HTML and script code in a user's
browser session in context of a vulnerable site.

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

PROVIDED AND/OR DISCOVERED BY:
Diabolic Crab

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About:
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