CVE-2020-8818: High severity CardGate CardGate Payments vulnerability
An issue was discovered in the CardGate Payments plugin through 2.0.30 for Magento 2. Lack of origin authentication in the IPN callback processing function in Controller/Payment/Callback.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 Software
Event History
Frequently Asked Questions
What is CVE-2020-8818?
CVE-2020-8818 is a vulnerability in the CardGate Payments plugin through version 2.0.30 for Magento 2.
What is the severity of CVE-2020-8818?
CVE-2020-8818 has a severity rating of 8.1 (high).
How does CVE-2020-8818 impact Magento 2?
CVE-2020-8818 allows an attacker to remotely replace critical plugin settings in Magento 2, such as the merchant ID and secret key.
What is the affected software of CVE-2020-8818?
The affected software of CVE-2020-8818 includes CardGate Payments plugin version 2.0.30 for Magento 2 and Adobe Magento version 2.3.4.
How can I fix CVE-2020-8818?
To fix CVE-2020-8818, apply the latest security patches or updates provided by CardGate Payments and Magento.