PoC Index

CVE-2020-8818

HIGH 8.1EPSS 4.2%

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.

CVSS v3.1
8.1 HIGHCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
CVSS v3.1
8.1 HIGHCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
CVSS v2.0
5.5 MEDIUMAV:N/AC:L/Au:S/C:P/I:P/A:N
EPSS
4.17% chance of exploitation in the next 30 days, 90th percentile
Published
2020-02-25
Updated
2024-08-04

Proof-of-concept exploits (2)

References

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