Authenticated Cross-Site Scripting Vulnerability in pfSense WebGUI
CVE-2020-19203

5.4MEDIUM

Key Information:

Vendor

Netgate

Status
Pfsense
Vendor
CVE Published:
12 July 2021

What is CVE-2020-19203?

An authenticated Cross-Site Scripting (XSS) vulnerability exists in the pfSense software's WebGUI, specifically within the wake-on-LAN widget. This flaw arises from the improper encoding of the description parameter for wake-on-LAN entries, potentially permitting attackers to execute harmful scripts stored in the widget's output. Versions 2.4.4-p2 and earlier are notably affected, creating an avenue for exploitation that could compromise user security and integrity within the pfSense environment.

References

https://www.pfsense.org/download/
x_refsource_MISC
https://docs.netgate.com/pfsense/en/latest/releases/2-4-4...
x_refsource_MISC
https://gist.github.com/dharmeshbaskaran/55d546496bfb0ba2...
x_refsource_MISC

CVSS V3.1

Score:
5.4
Severity:
MEDIUM
Confidentiality:
Low
Integrity:
Low
Availability:
Low
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
Required
Scope:
Changed

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.