CVE-2026-84043: CWE-345 Insufficient Verification of Data Authenticity in ePayco Payment Gateway for WooCommerce
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.
CVSS v3.1
Score 5.3medium
Affected software
ePayco Payment Gateway for WooCommerce
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
The ePayco Payment Gateway for WooCommerce plugin versions prior to 8.4.7 contain an insufficient verification of data authenticity vulnerability (CWE-345). Specifically, the plugin does not correctly validate the authenticity of payment confirmation requests, enabling unauthenticated attackers to manipulate order status by marking orders as paid without a legitimate gateway signature. This flaw compromises the integrity of the payment confirmation process.
Potential Impact
An attacker can exploit this vulnerability to mark orders as paid without completing a valid payment transaction. This impacts the integrity of order processing by allowing fraudulent orders to be accepted, potentially resulting in financial loss for merchants using the affected plugin versions.
Mitigation Recommendations
No official fix or patch information is currently available. Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until a fix is released, users should consider disabling the plugin or implementing additional verification controls on payment confirmations to prevent unauthorized order status changes.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- WPScan
- Date Reserved
- 2026-09-01T04:02:21.737Z
- Cvss Version
- 3.1
- State
- PUBLISHED
Threat ID: 6a9a9874acd9273b49681d5b
Added to database: 09/04/2026, 10:07:48 UTC
Last enriched: 09/07/2026, 12:00:21 UTC
Last updated: 10/17/2026, 18:48:23 UTC
Views: 85
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