CVE-2026-103331
UniPAY Payment Gateway For WooCommerce <= 2.3 - Unauthenticated Order Payment Forgery via Empty IPN Secret
CVSS Score
5.3
EPSS Score
0.0%
EPSS Percentile
0th
The UniPAY Payment Gateway For WooCommerce WordPress plugin through 2.3 does not properly verify the authenticity of payment notifications, as their signature is checked against a merchant secret that is empty by default, allowing unauthenticated attackers to forge a valid notification and mark arbitrary orders as paid.
| Vendor | unknown |
| Product | unipay payment gateway for woocommerce |
| Published | Oct 28, 2026 |
| Last Updated | Oct 28, 2026 |
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Affected Versions
Unknown / UniPAY Payment Gateway For WooCommerce
0 ≤ 2.3
References
Credits
Naoki Kawahigashi WPScan