The Freemius SDK, as used by hundreds of WordPress plugin and theme developers, was vulnerable to Cross-Site Request Forgery and Information disclosure due to missing capability checks and nonce protection on the _get_debug_log, _get_db_option, and the _set_db_option functions in versions up to, and including 2.4.2. Any WordPress plugin or theme running a version of Freemius less than 2.4.3 is vulnerable.

Zen Cart findPluginAdminPage Local File Inclusion Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of Zen Cart. Authentication is not required to exploit this vulnerability. The specific flaw exists within the findPluginAdminPage function. The issue results from the lack of proper validation of user-supplied data prior to passing it to a PHP include function. An attacker can leverage this in conjunction with other vulnerabilities to execute arbitrary code in the context of the service account. Was ZDI-CAN-21408.

Zen Cart 1.5.6d allows reflected XSS via the main_page parameter to includes/templates/template_default/common/tpl_main_page.php or includes/templates/responsive_classic/common/tpl_main_page.php.

Zen Cart 1.5.7b allows admins to execute arbitrary OS commands by inspecting an HTML radio input element (within the modules edit page) and inserting a command.

Directory traversal vulnerability in Zen Cart 1.5.4 allows remote attackers to include and execute arbitrary local files via a .. (dot dot) in the act parameter to ajax.php.

The traverseStrictSanitize function in admin_dir/includes/classes/AdminRequestSanitizer.php in ZenCart 1.5.5e mishandles key strings, which allows remote authenticated users to execute arbitrary PHP code by placing that code into an invalid array index of the admin_name array parameter to admin_dir/login.php, if there is an export of an error-log entry for that invalid array index.

In index.php in Zen Cart 1.6.0, the products_id parameter can cause XSS.

Zen Cart 1.6.0 has XSS in the main_page parameter to index.php. NOTE: 1.6.0 is not an official release but the vendor's README.md file offers a link to v160.zip with a description of "Download latest in-development version from github."

Multiple cross-site request forgery (CSRF) vulnerabilities in Zen Cart 1.3.9h allow remote attackers to hijack the authentication of administrators for requests that (1) delete a product via a delete_product_confirm action to product.php or (2) disable a product via a setflag action to categories.php.

Multiple cross-site scripting (XSS) vulnerabilities in zencart-ja (aka Zen Cart Japanese edition) 1.3 jp through 1.3.0.2 jp8 and 1.5 ja through 1.5.1 ja allow remote attackers to inject arbitrary web script or HTML via a crafted parameter, related to admin/includes/init_includes/init_sanitize.php and includes/init_includes/init_sanitize.php.