CVE-2011-5237: PayPal WPS Toolkit

Medium severity, CVSS 5.8. EPSS: 0.5% chance of exploitation in the next 30 days.

PayPal WPS ToolKit does not verify that the server hostname matches a domain name in the subject's Common Name (CN) or subjectAltName field of the X.509 certificate, which allows man-in-the-middle attackers to spoof SSL servers via an arbitrary valid certificate.

Affected products

• PayPal WPS Toolkit: affected versions not specified

Published 2012-11-06. Last modified 2026-06-16.