When taxes are enabled, the "Additional tax classes" field was not properly sanitised or escaped before being output back in the admin dashboard, allowing high privilege users such as admin to use XSS payloads even when the unfiltered_html is disabled

The WooCommerce Help Scout WordPress plugin before 2.9.1 (https://woocommerce.com/products/woocommerce-help-scout/) allows unauthenticated users to upload any files to the site which by default will end up in wp-content/uploads/hstmp.

Ultimate WooCommerce Gift Cards 3.0.2 is affected by a file upload vulnerability in the Custom GiftCard Template that can remotely execute arbitrary code. Once it contains the function "Custom Gift Card Template", the function of uploading a custom image is used, changing the name of the image extension to PHP and executing PHP code on the server.

The WooCommerce plugin before 4.7.0 for WordPress allows remote attackers to view the status of arbitrary orders via the order_id parameter in a fetch_order_status action.

An issue was discovered in the NAB Transact extension 2.1.0 for the WooCommerce plugin for WordPress. An online payment system bypass allows orders to be marked as fully paid by assigning an arbitrary bank transaction ID during the payment-details entry step.

Persistent XSS in the WooCommerce Subscriptions plugin before 2.6.3 for WordPress allows remote attackers to execute arbitrary JavaScript because Billing Details are mishandled in WCS_Admin_Post_Types in class-wcs-admin-post-types.php.

WooCommerce before 3.6.5, when it handles CSV imports of products, has a cross-site request forgery (CSRF) issue with resultant stored cross-site scripting (XSS) via includes/admin/importers/class-wc-product-csv-importer-controller.php.

The persian-woocommerce-sms plugin before 3.3.4 for WordPress has ps_sms_numbers XSS.

/payu/icpcheckout/ in the WooCommerce PayU India Payment Gateway plugin 2.1.1 for WordPress allows Parameter Tampering in the purchaseQuantity=1 parameter, as demonstrated by purchasing an item for lower than the intended price.

cgi-bin/webscr?cmd=_cart in the WooCommerce PayPal Checkout Payment Gateway plugin 1.6.17 for WordPress allows Parameter Tampering in an amount parameter (such as amount_1), as demonstrated by purchasing an item for lower than the intended price. NOTE: The plugin author states it is true that the amount can be manipulated in the PayPal payment flow. However, the amount is validated against the WooCommerce order total before completing the order, and if it doesn’t match then the order will be left in an “On Hold” state