What is CVE-2020-19201?

CVE-2020-19201 is a medium-severity vulnerability in Netgate Pfsense, classified under Cross-site Scripting. CVSS score: 5.4/10. Published 2021-07-12.

How severe is CVE-2020-19201?

Medium severity. CVSS v3 base score is 5.4 out of 10.

XSS in Netgate Pfsense

CVE-2020-19201

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.

Vulnerability class: XSS (Cross-Site Scripting)

EPSS: 0.035 (87.8th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 5.4 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N.

Affected products

Netgate Pfsense — versions 2.4.4
N/a — versions n/a

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

cve@mitre.org (x_refsource_MISC, Vendor Advisory)
cve@mitre.org (Product, x_refsource_MISC, Vendor Advisory)
cve@mitre.org (Exploit, Third Party Advisory, x_refsource_MISC)

Frequently asked questions

What is CVE-2020-19201?: CVE-2020-19201 is a medium-severity vulnerability in Netgate Pfsense, classified under Cross-site Scripting. CVSS score: 5.4/10. Published 2021-07-12.
How severe is CVE-2020-19201?: Medium severity. CVSS v3 base score is 5.4 out of 10.