oscommerce v2.3.4.1 has a functional problem in user registration and password rechecking, where a non-identical password can bypass the checks in /catalog/admin/administrators.php and /catalog/password_reset.php

osCommerce 2.3.4.1 has XSS vulnerability via the authenticated user entering the XSS payload into the title section of newsletters.

osCommerce Phoenix CE before 1.0.5.4 allows admin/define_language.php CSRF.

osCommerce Phoenix CE before 1.0.5.4 allows OS command injection remotely. Within admin/mail.php, a from POST parameter can be passed to the application. This affects the PHP mail function, and the sendmail -f option.

Several XSS vulnerabilities in osCommerce CE Phoenix before 1.0.6.0 allow an attacker to inject and execute arbitrary JavaScript code. The malicious code can be injected as follows: the page parameter to catalog/admin/order_status.php, catalog/admin/tax_rates.php, catalog/admin/languages.php, catalog/admin/countries.php, catalog/admin/tax_classes.php, catalog/admin/reviews.php, or catalog/admin/zones.php; or the zpage or spage parameter to catalog/admin/geo_zones.php.

osCommerce 2.3.4.1 has an incomplete '.htaccess' for blacklist filtering in the "product" page. Because of this filter, script files with certain PHP-related extensions (such as .phtml and .php5) didn't execute in the application. But this filter didn't prevent the '.pht' extension. Thus, remote authenticated administrators can upload '.pht' files for arbitrary PHP code execution via a /catalog/admin/categories.php?cPath=&action=new_product URI.

osCommerce 2.3.4.1 has an incomplete '.htaccess' for blacklist filtering in the "product" page. Remote authenticated administrators can upload new '.htaccess' files (e.g., omitting .php) and subsequently achieve arbitrary PHP code execution via a /catalog/admin/categories.php?cPath=&action=new_product URI.

osCommerce 2.3.4.1 has an incomplete '.htaccess' for blacklist filtering in the "product" page. The .htaccess file in catalog/images/ bans the html extension, but there are several extensions in which contained HTML can be executed, such as the svg extension.

osCommerce 2.3.4.1 has an incomplete '.htaccess' for blacklist filtering in the "product" page. The .htaccess file in catalog/images/ bans the html extension, but there are several alternative cases in which HTML can be executed, such as a file with no extension or an unrecognized extension (e.g., the test or test.asdf filename).

osCommerce 2.3.4.1 has an incomplete '.htaccess' for blacklist filtering in the "product" page. The .htaccess file in catalog/images/ bans the html extension, but Internet Explorer render HTML elements in a .eml file.