OPay Payment Gateway for WooCommerce

CVE-2026-103319: The OPay Payment Gateway for WooCommerce WordPress plugin through 2.5.5 does not properly verify that payment notifications originate from the payment provider,

CVE-2026-103319 Oct 26, 2026 Source: Vendor

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.

Source of record The credited names below are quoted verbatim from the vendor's own advisory: https://nvd.nist.gov/vuln/detail/CVE-2026-103319

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CVE-2026-103319 BR2026-0000-032754 unclaimed

Credited as Naoki Kawahigashi