The Payments Plugin and Checkout Plugin for WooCommerce: Stripe, PayPal, Square, Authorize.net plugin for WordPress is vulnerable to Reflected Cross-Site Scripting due to the use of add_query_arg without appropriate escaping on the URL in all versions up to, and including, 1.112.0. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that execute if they can successfully trick a user into performing an action such as clicking on a link.

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.

Cross-Site Request Forgery (CSRF) vulnerability in Checkout Plugins Stripe Payments For WooCommerce by Checkout.This issue affects Stripe Payments For WooCommerce by Checkout: from n/a through 1.9.1.

Authorization Bypass Through User-Controlled Key vulnerability in Checkout Plugins Stripe Payments For WooCommerce by Checkout.This issue affects Stripe Payments For WooCommerce by Checkout: from n/a through 1.9.1.

The Stripe Payment Plugin for WooCommerce plugin for WordPress is vulnerable to SQL Injection via the 'id' parameter in all versions up to, and including, 3.7.9 due to insufficient escaping on the user supplied parameter and lack of sufficient preparation on the existing SQL query. This makes it possible for unauthenticated attackers to append additional SQL queries into already existing queries that can be used to extract sensitive information from the database.

The Stripe Payment Plugin for WooCommerce plugin for WordPress is vulnerable to authentication bypass in versions up to, and including, 3.7.7. This is due to insufficient verification on the user being supplied during a Stripe checkout through the plugin. This allows unauthenticated attackers to log in as users who have orders, who are typically customers.

The Stripe Payment Plugin for WooCommerce plugin for WordPress is vulnerable to unauthorized modification of data due to a missing capability check on the eh_callback_handler function in versions up to, and including, 3.7.9. This makes it possible for unauthenticated attackers to modify the order status of arbitrary WooCommerce orders.

Cross-Site Request Forgery (CSRF) vulnerability in Checkout Plugins Stripe Payments For WooCommerce plugin <= 1.4.10 leads to settings change.

The Stripe for WooCommerce WordPress plugin is missing a capability check on the save() function found in the ~/includes/admin/class-wc-stripe-admin-user-edit.php file that makes it possible for attackers to configure their account to use other site users unique STRIPE identifier and make purchases with their payment accounts. This affects versions 3.0.0 - 3.3.9.

plugin-fw/lib/yit-plugin-panel-wc.php in the YIT Plugin Framework through 3.3.8 for WordPress allows authenticated options changes.