CVE-2026-103319
OPay Payment Gateway for WooCommerce <= 2.5.5 - Unauthenticated Payment Confirmation Forgery via Empty Default Secret Key
- State
- Published
- Severity
- 5.3 Medium
- Published
- Oct 26, 2026
- Updated
- Oct 26, 2026
- Reserved
- Sep 30, 2026
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 3.1 | 5.3 Medium | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N | CISA-ADP |
Weaknesses
- CWE-287 Improper Authentication
Affected Products
| Product | Versions |
|---|---|
OPay Payment Gateway for WooCommerceUnknown |
|
References
- https://wpscan.com/vulnerability/c07f15a0-3c15-429f-bcde-1511ad658c6c/exploitvdb-entrytechnical-description
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