CVE-2020-19201: Netgate Pfsense

Medium severity, CVSS 5.4. EPSS: 3.5% chance of exploitation in the next 30 days.

A Stored Cross-Site Scripting (XSS) vulnerability was found in status_filter_reload.php, a page in the pfSense software WebGUI, on Netgate pfSense version 2.4.4-p2 and earlier. The page did not encode output from the filter reload process, and a stored XSS was possible via the descr (description) parameter on NAT rules.

Affected products

• Netgate Pfsense: up to and including 2.4.4; version 2.4.4 only

Published 2021-07-12. Last modified 2026-06-17.