CardGate Payments for WooCommerce <= 3.1.15 - Lack of Origin Validation
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 software
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| Platform | Package | Vulnerable versions | Fixed in |
|---|---|---|---|
| Composer package | cardgate/woocommerce | < 3.1.16 | 3.1.16 |
| WordPress plugin | CardGate Payments for WooCommerce | < 3.1.16 | 3.1.16 |
References
- https://nvd.nist.gov/vuln/detail/CVE-2020-8819
- https://github.com/cardgate/woocommerce/issues/18
- https://github.com/cardgate/woocommerce/pull/17/commits/0b83588d604c8c56c7fded43144fcced96b2ada9
- https://github.com/cardgate/woocommerce
- https://github.com/cardgate/woocommerce/blob/f2111af7b1a3fd701c1c5916137f3ac09482feeb/cardgate/cardgate.php#L426-L442
- https://wpvulndb.com/vulnerabilities/10097
- https://www.exploit-db.com/exploits/48134
- http://packetstormsecurity.com/files/156504/WordPress-WooCommerce-CardGate-Payment-Gateway-3.1.15-Bypass.html
- https://www.wordfence.com/threat-intel/vulnerabilities/id/24aadf0c-0266-4c39-ac7b-d6f09053d903?source=api-prod
- CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N- Weakness (CWE)
CWE-346- Platform
- Composer, WordPress
- Package
cardgate/woocommerce, CardGate Payments for WooCommerce- Disclosed
- 22.02.2020
- Updated
- 11.10.2026 10:22
Sources and licenses
OSV / GitHub Advisory Database - GHSA-5pq5-9phv-q5j3 - CC BY 4.0
Wordfence Intelligence - 24aadf0c-0266-4c39-ac7b-d6f09053d903 - Wordfence Intelligence
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Vulnerability history: CardGate Payments for WooCommerce
All published vulnerabilities of this package (WordPress plugin), newest first. Shows whether this is a one-off slip or a package that needs watching.
- Total entries
- 3
- First → latest
- 02.2020 04.2025
- Without a fix
- 0
- Exploited in attacks
- 0
Severity breakdown
- High 1
- Medium 2
Disclosures per year
- 2020: 1
- 2021: 0
- 2022: 0
- 2023: 0
- 2024: 1
- 2025: 1
- 2026: 0
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CardGate Payments for WooCommerce <= 3.1.15 - Lack of Origin Validation this entry
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