CVE-2015-6511: Netgate Pfsense

Medium severity, CVSS 4.3. EPSS: 2.1% chance of exploitation in the next 30 days.

Cross-site scripting (XSS) vulnerability in pfSense before 2.2.3 allows remote attackers to inject arbitrary web script or HTML via the server[] parameter to services_ntpd.php.

Affected products

• Netgate Pfsense: up to and including 2.2.2

Published 2015-08-18. Last modified 2026-06-17.