CVE-2026-13399: Payment Plugins for PayPal WooCommerce < 2.0.20 - Unauthenticated Payment Bypass via Reuse of a Completed PayPal Order
Published Aug 6, 2026
·Updated
The Payment Plugins for PayPal WooCommerce WordPress plugin before 2.0.20 does not have proper authorization checks on a REST endpoint, allowing unauthenticated users to bypass payments
Affected Software
1 affected component
Paypal Payment Plugins for PayPal WooCommerce<2.0.20
Event History
Aug 6, 2026
CVE Published
via MITRE·04:52 PM
Data Sourced
via MITRE·04:52 PM
DescriptionSeverityWeakness
Data Sourced
via NVD·10:16 PM
DescriptionSeverity
Frequently Asked Questions
1
What is the severity of CVE-2026-13399?
CVE-2026-13399 has a severity rating of 7.5, indicating a high risk.
2
How do I fix CVE-2026-13399?
To fix CVE-2026-13399, update the Payment Plugins for PayPal WooCommerce to version 2.0.20 or later.
3
What does CVE-2026-13399 allow an attacker to do?
CVE-2026-13399 allows unauthenticated users to bypass payments by exploiting improper authorization checks.
4
Which versions of the plugin are affected by CVE-2026-13399?
CVE-2026-13399 affects all versions of the Payment Plugins for PayPal WooCommerce before 2.0.20.
5
Is user authentication required to exploit CVE-2026-13399?
No, user authentication is not required to exploit CVE-2026-13399.