CardGate Payments for WooCommerce, CVE-2020-8819

CVE, Research URL: CVE-2020-8819
Home page URL: Security reports for CardGate Payments for WooCommerce
Application: CardGate Payments for WooCommerce
Published on: Feb 25, 2020
Research Description: An issue was discovered in the CardGate Payments plugin through 3.1.15 for WooCommerce. Lack of origin authentication in the IPN callback processing function in cardgate/cardgate.php allows an attacker to remotely replace critical plugin settings (merchant ID, secret key, etc.) and therefore bypass the payment process (e.g., spoof an order status by manually sending an IPN callback request with a valid signature but without real payment) and/or receive all of the subsequent payments.
Affected versions: Min -, max 3.1.16.
Status: vulnerable