CVE-2020-8819
CVSS v3
8.1
HIGH
EPSS Score
4.9 %
exploit probability, as of 2026-09-25
CISA KEV
No
known exploited
Exploitation
—
SSVC status
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.
Technical details
- Published
- 2020-02-25
- Exploit-DB
- EDB-48134
Frequently asked questions
What is CVE-2020-8819?
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.
Is CVE-2020-8819 actively exploited?
Active exploitation of CVE-2020-8819 has not been confirmed. Its EPSS score was 4.9% on 2026-09-25, the estimated probability of exploitation in the next 30 days.
What is the CVSS score for CVE-2020-8819?
CVE-2020-8819 has a CVSS v3 base score of 8.1 (HIGH severity).
Is CVE-2020-8819 affecting your environment?
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