The OPay Payment Gateway for WooCommerce WordPress plugin through 2.5.5 does not properly verify that payment notifications originate from the payment provider, as the secret used to validate their signature is empty by default, allowing unauthenticated attackers to forge a valid notification and mark arbitrary orders as paid, cancelled or failed.
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Fixes

Solution

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Workaround

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History

Mon, 26 Oct 2026 08:45:00 +0000

Type Values Removed Values Added
Weaknesses CWE-20
CWE-285
CWE-330

Mon, 26 Oct 2026 06:30:00 +0000

Type Values Removed Values Added
Description The OPay Payment Gateway for WooCommerce WordPress plugin through 2.5.5 does not properly verify that payment notifications originate from the payment provider, as the secret used to validate their signature is empty by default, allowing unauthenticated attackers to forge a valid notification and mark arbitrary orders as paid, cancelled or failed.
Title OPay Payment Gateway for WooCommerce <= 2.5.5 - Unauthenticated Payment Confirmation Forgery via Empty Default Secret Key
References

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: WPScan

Published:

Updated: 2026-10-26T06:00:18.562Z

Reserved: 2026-09-30T12:02:14.736Z

Link: CVE-2026-103319

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-10-26T07:17:07.193

Modified: 2026-10-26T07:17:07.193

Link: CVE-2026-103319

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-10-26T08:30:08Z

Weaknesses