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TITLE:
Avactis Shopping Cart "checkout.php" Cross-Site Scripting

SECUNIA ADVISORY ID:
SA31768

VERIFY ADVISORY:
http://secunia.com/advisories/31768/

CRITICAL:
Less critical

IMPACT:
Cross Site Scripting

WHERE:
>From remote

SOFTWARE:
Avactis Shopping Cart 1.x
http://secunia.com/product/19760/

DESCRIPTION:
Russ McRee has discovered two vulnerabilities in Avactis Shopping
Cart, which can be exploited by malicious people to conduct
cross-site scripting attacks.

Input passed to the "step_id" and "CHECKOUT_CZ_BLOWFISH_KEY"
parameters in checkout.php is not 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 an affected
site.

The vulnerabilities are confirmed in version 1.8.1 free edition and
reported in version 1.8.0. Other versions may also be affected.

SOLUTION:
Apply the vendor's approved patch:
http://www.avactis.com/forums/index.php?showtopic=3577

PROVIDED AND/OR DISCOVERED BY:
Russ McRee

ORIGINAL ADVISORY:
http://holisticinfosec.org/content/view/81/45/

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