Vulnerability · Published Sep 11, 2026 · Assigned by WPScan

CVE-2026-82215WC PayPay Gateway 0.5 - 0.9.3 - Unauthenticated Payment Bypass via Unverified Webhook

Medium 5.9

In plain English

A medium-severity insufficient verification of data authenticity in Payment Gateway PayPay for WooCommerce from Unknown. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 5% of all known vulnerabilities).

Severity (CVSS 3.1)5.9Medium

Exploit odds (30 days)0.2%top 94.7% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official description

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 (as reported)

Vendor	Product	Versions
Unknown	Payment Gateway PayPay for WooCommerce	0.5 – through 0.9.3

Weakness: CWE-345 · Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N

References

https://wpscan.com/vulnerability/c7703a51-9d5d-4483-b214-7249701ee9ff/ exploit, vdb-entry, technical-description