CVE-2026-82215: Unknown Payment Gateway Paypay For Woocommerce

Medium severity, CVSS 5.9. EPSS: 0.2% chance of exploitation in the next 30 days.

The Payment Gateway PayPay for WooCommerce WordPress plugin from 0.5 to 0.9.3 does not verify the authenticity of the payment notifications it receives before acting on them, allowing unauthenticated attackers who know the store's merchant identifier to mark arbitrary orders as paid, or to cancel or fail them.

Affected products

• Unknown Payment Gateway Paypay For Woocommerce: from 0.5, up to and including 0.9.3

Published 2026-09-11. Last modified 2026-09-11.