The Robokassa payment gateway for WooCommerce plugin before version 1.9.0 does not verify the authenticity of incoming payment-notification requests, allowing unauthenticated attackers to change any WooCommerce order status to failed. This vulnerability affects WooCommerce installations using the Robokassa payment gateway, potentially disrupting order fulfillment processes. Order identifiers are sequentia [truncated]
The Robokassa payment gateway for Woocommerce WordPress plugin before 1.8.9 does not verify the authenticity of incoming payment notifications when its non-default deferred-payment feature is enabled, allowing unauthenticated attackers to forge a notification and mark arbitrary WooCommerce orders as paid or on-hold without payment or a valid signature.