CVE-2020-19201

Severity: medium (CVSS 5.4 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 3.5% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2021-07-12 · updated 2026-06-17
Weakness: CWE-79

Description

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: through 2.4.4; 2.4.4-p1, 2.4.4-p2

References

https://docs.netgate.com/pfsense/en/latest/releases/2-4-4-p3.html
https://gist.github.com/dharmeshbaskaran/fd3779006361d07651a883e8a040d916
https://www.pfsense.org/download/
https://docs.netgate.com/pfsense/en/latest/releases/2-4-4-p3.html
https://gist.github.com/dharmeshbaskaran/fd3779006361d07651a883e8a040d916
https://www.pfsense.org/download/

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