CVE-2026-103319
OPay Payment Gateway for WooCommerce <= 2.5.5 - Unauthenticated Payment Confirmation Forgery via Empty Default Secret Key
CVSS Score
0.0
EPSS Score
0.0%
EPSS Percentile
0th
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.
| Vendor | unknown |
| Product | opay payment gateway for woocommerce |
| Published | Oct 26, 2026 |
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Affected Versions
Unknown / OPay Payment Gateway for WooCommerce
0 ≤ 2.5.5
References
Credits
Naoki Kawahigashi WPScan