CardGate Payments for WooCommerce <= 3.1.15 — Lack of Origin Validation
CVE-2020-8819Published · Updated Action summary
Affected: <3.1.16Update to 3.1.16 or newer
All remediation steps- Severity
- High8.1
- CVSS
- 8.1CVSS 3.1 · CNA (Wordfence)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:NWhat does this vector mean?
AV:NAttack vector- Network
AC:LAttack complexity- Low
PR:LPrivileges required- Low
UI:NUser interaction- None
S:UScope- Unchanged
C:HConfidentiality- High
I:HIntegrity- High
A:NAvailability- None
- Weakness
- CWE-346 Origin Validation Error
- Required access
- Unknown
- Exploit prediction (EPSS)
- No score
- CISA KEV
- Not listed
On this page8
Am I affected?
CardGate Payments for WooCommerce cardgate
- Affected< 3.1.16
- Patched in3.1.16
Update to 3.1.16 or newer.
You are affected if you run < 3.1.16. Version 3.1.16 and later are not affected by this issue.
- Check your version: in wp-admin go to Plugins → Installed Plugins and read the version under CardGate Payments for WooCommerce.
- No admin access? Run a passive check of your site. It reads public files only.
What to do
- Update to version 3.1.16, or a newer patched version
- Rotate administrator passwords and application secrets if the site ran a vulnerable version while publicly reachable.
- Watch CardGate Payments for WooCommerce to get an email when the next vulnerability is published.
Advisory
Source description from Wordfence Intelligence, credited to Vladislav Svolsky (633kh4ck/GeekHack).
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.
Exploits & references
Proof-of-concept & detection
No public proof-of-concept or detection template is known for this vulnerability.
Advisories & patches
- Advisorywordfence.com
Related CVEs
More in CardGate Payments for WooCommerce
All 3| Severity | Vulnerability | CVE | Published |
|---|---|---|---|
| Medium4.9 | Authenticated (Administrator+) SQL Injection ≤3.2.1Update to 3.2.2 | CVE-2025-32119 | |
| Medium6.1 | Reflected Cross-Site Scripting ≤3.2.1Update to 3.2.2 | CVE-2024-12257 |
- Medium4.9Authenticated (Administrator+) SQL Injection
≤3.2.1Update to 3.2.2
- Medium6.1Reflected Cross-Site Scripting
≤3.2.1Update to 3.2.2
Timeline
CVE published
Severity high, CVSS 8.1
Record last updated
Sources & licenses
Wordfence record- Vulnerability data
- Wordfence Intelligence. Copyright 2012-2026 Defiant Inc. Licensed under the CC BY-SA 4.0.
- CVE® identifiers
- Copyright 1999-2026 The MITRE Corporation. Used under the CVE Program. CVE® is a registered trademark of The MITRE Corporation.
- CVSS / CWE
- National Vulnerability Database (NVD), shown unmodified. This product uses the NVD API but is not endorsed or certified by the NVD.
- VulnCrest content
- Summary, remediation guidance and page layout © VulnCrest. Not sourced from NVD.