Clover Payment Gateway by Zaytech for WooCommerce < 1.3.6 - Unauthenticated Payment Bypass via check_order
Priority HIGH 72CWE-287Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Security bypass
- Confidentiality · integrity · availability
- None · High · None
- Fix status
- Fixed
Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA. Impact type from CWE-287.
Summary
The Clover Payment Gateway by Zaytech for WooCommerce WordPress plugin before 1.3.6 does not verify that an approved external payment record actually belongs to the WooCommerce order being completed, nor that the paid amount matches the order total, allowing unauthenticated users to mark arbitrary orders as paid by replaying a single genuinely-approved payment reference (for example one obtained from their own minimal purchase).
Why it matters now
Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00358 29th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by the CNA
Fix Fixed Clover Payment Gateway by Zaytech for WooCommerce (Unknown): 1.3.6
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- Poc
- Automatable
- Yes
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Unknown | Clover Payment Gateway by Zaytech for WooCommerce | before 1.3.6 | 1.3.6 | Patch available | CNA |
- Clover Payment Gateway by Zaytech for WooCommerce VendorUnknown Affected before 1.3.6 Fixed in 1.3.6 Patch available CNA
Remediation
- Fix · CNA Clover Payment Gateway by Zaytech for WooCommerce (Unknown) Fixed in 1.3.6
Timeline
- 2026-10-02 Threatist record created from CVE-2026-12493
- 2026-10-03 Alias added: GHSA-c2pq-vc2r-qrj3
References
Sources
- CVE-2026-12493 · CVE Program
- CVE-2026-12493 · NVD
- FIRST EPSS
- GHSA-c2pq-vc2r-qrj3 · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences