Buckaroo Woocommerce Payments Plugin
Monthly
Missing authorization controls in the Buckaroo WooCommerce Payments Plugin before 4.9.0 allow any authenticated WordPress user - including low-privilege Subscribers - to trigger payment capture refunds against any captured order via an unprotected AJAX endpoint. The flaw causes direct financial integrity loss for merchants, as unauthorized refund processing reverses captured payments without any approval workflow. A publicly available exploit exists per WPScan, though EPSS remains very low at 0.13% (3rd percentile), indicating exploitation has not become widespread despite the accessible attack surface.
Missing authorization controls in the Buckaroo WooCommerce Payments Plugin before 4.9.0 allow any authenticated WordPress user - including low-privilege Subscribers - to trigger payment capture refunds against any captured order via an unprotected AJAX endpoint. The flaw causes direct financial integrity loss for merchants, as unauthorized refund processing reverses captured payments without any approval workflow. A publicly available exploit exists per WPScan, though EPSS remains very low at 0.13% (3rd percentile), indicating exploitation has not become widespread despite the accessible attack surface.