The PayPal (aka MODULE_PAYMENT_PAYPAL_STANDARD) module before 1.1 in osCommerce Online Merchant before 2.3.4 allows remote attackers to set the payment recipient via a modified value of the merchant's e-mail address, as demonstrated by setting the recipient to one's self.

Cross-site scripting (XSS) vulnerability in osCommerce/OM/Core/Site/Shop/Application/Checkout/pages/main.php in OSCommerce Online Merchant 3.0.2 allows remote attackers to inject arbitrary web script or HTML via the value_title parameter, a different vulnerability than CVE-2012-1059.

Cross-site scripting (XSS) vulnerability in osCommerce/OM/Core/Site/Setup/Application/Install/RPC/DBCheck.php in OSCommerce Online Merchant 3.0.2, when the software is being installed, allows remote attackers to inject arbitrary web script or HTML via the name parameter to oscommerce/index.php, which is not properly handled in an error message. NOTE: this might not be a vulnerability, since the ability to access oscommerce/index.php during installation may already imply administrator privileges.