CVE-2020-8819
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…
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (4.88%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
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.
- CVSS 3.1
- 8.1 HIGHCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
- EPSS
- 4.88% probability · 92th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-346
- Affected
- cardgate/cardgate payments
- Source
- cve@mitre.org
References
- http://packetstormsecurity.com/files/156504/WordPress-WooCommerce-CardGate-Payment-Gateway-3.1.15-Bypass.htmlExploit, Third Party Advisory, VDB Entry
- https://github.com/cardgate/woocommerce/blob/f2111af7b1a3fd701c1c5916137f3ac09482feeb/cardgate/cardgate.php#L426-L442Exploit, Third Party Advisory
- https://github.com/cardgate/woocommerce/issues/18Exploit, Third Party Advisory
- https://wpvulndb.com/vulnerabilities/10097Third Party Advisory
- https://www.exploit-db.com/exploits/48134Exploit, Third Party Advisory, VDB Entry
- http://packetstormsecurity.com/files/156504/WordPress-WooCommerce-CardGate-Payment-Gateway-3.1.15-Bypass.htmlExploit, Third Party Advisory, VDB Entry
- https://github.com/cardgate/woocommerce/blob/f2111af7b1a3fd701c1c5916137f3ac09482feeb/cardgate/cardgate.php#L426-L442Exploit, Third Party Advisory
- https://github.com/cardgate/woocommerce/issues/18Exploit, Third Party Advisory
- https://wpvulndb.com/vulnerabilities/10097Third Party Advisory
- https://www.exploit-db.com/exploits/48134Exploit, Third Party Advisory, VDB Entry
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.