CVE-2026-13399
Deferred Deferred - Pending Action

Unauthenticated Payment Bypass in PayPal WooCommerce Plugin

Publication date: 2026-08-06

Last updated on: 2026-08-26

Assigner: WPScan

Description
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

CVSS Scores

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Meta Information

Published
2026-08-06
Last Modified
2026-08-26
Generated
2026-08-27
AI Q&A
2026-08-07
EPSS Evaluated
2026-08-26
NVD
CVE-2026-13399

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
payment_plugins paypal_woocommerce to 2.0.20 (exc)

Helpful Resources

Exploitability

CWE
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KEV
KEV Icon
CWE ID Description
CWE-639 The system's authorization functionality does not prevent one user from gaining access to another user's data or record by modifying the key value identifying the data.
CWE-862 The product does not perform an authorization check when an actor attempts to access a resource or perform an action.

Attack-Flow Graph

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Executive Summary

This vulnerability is in the Payment Plugins for PayPal WooCommerce WordPress plugin before version 2.0.20. It lacks proper authorization checks on a REST endpoint, allowing unauthenticated users to bypass payment requirements.

Detection Guidance

To detect this vulnerability, check if your WordPress site uses the Payment Plugins for PayPal WooCommerce plugin version before 2.0.20. Verify the plugin version in the WordPress admin panel under Plugins. If outdated, update immediately. No specific commands are provided in the context.

Impact Analysis

Unauthenticated users could exploit this to make purchases without paying, leading to financial losses for the website owner. It undermines the integrity of payment processing.

Compliance Impact

This vulnerability could lead to unauthorized transactions, potentially violating financial transaction security requirements in GDPR or HIPAA if payment data is involved.

Mitigation Strategies

Update the Payment Plugins for PayPal WooCommerce WordPress plugin to version 2.0.20 or later to address the authorization bypass issue.

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