CVE-2026-17016

Restore PayPal Standard for WooCommerce <= 3.1.0 - Payment Bypass via PDT Underpayment

The Accept PayPal & Stripe with Subscriptions for WooCommerce WordPress plugin through 3.1.0 does not validate the amount actually paid against the order total in its PayPal Data Transfer return handler, allowing a customer to pay less than the order total and still have the order marked as fully paid when the PayPal Data Transfer feature is enabled.

Affected

Accept PayPal & Stripe with Subscriptions for WooCommerce

CVSS v3.1 CNA

3.7 LOWCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N

EPSS

0.24% chance of exploitation in the next 30 days, 14th percentile

Published

2026-08-10

Updated

2026-08-11

Proof-of-concept exploits (1)

• https://wpscan.com/vulnerability/fb73461f-521a-401b-98d0-5f32272368b8/

References

• CVE Record
• NVD entry