CVE-2026-16621
MEDIUM
NVD
CVSS Score
5.3
Severity
MEDIUM
Published
Aug 12, 2026
Vendor
unknown
Description
The Payment Gateway for PayPal on WooCommerce WordPress plugin before 9.2.1 does not verify that payment actually succeeded before completing an order in its PayPal return handler: it reads attacker-controlled parameters, performs no amount comparison and no order-ownership check, and completes the order even when the server-side gateway verification fails, allowing an unauthenticated attacker to mark arbitrary orders as paid without paying.