CVE-2017-6213: PayPal PHP Invoice SDK

Medium severity, CVSS 5.4. EPSS: 0.8% chance of exploitation in the next 30 days.

paypal/invoice-sdk-php is vulnerable to reflected XSS in samples/permissions.php via the permToken parameter, resulting in code execution.

Affected products

• PayPal PHP Invoice SDK: up to and including 3.9.0

Published 2018-08-02. Last modified 2026-06-17.