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pfSense: pfSense-SA-21_01.webgui: XSS vulnerability in the WebGUI

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pfSense: pfSense-SA-21_01.webgui: XSS vulnerability in the WebGUI

Severity
4
CVSS
(AV:L/AC:M/Au:N/C:P/I:P/A:P)
Published
03/03/2021
Created
04/15/2021
Added
04/15/2021
Modified
04/16/2021

Description

A stored Cross-Site Scripting (XSS) vulnerability was found in services_wol.php, a component of the pfSense CE and pfSense Plus software WebGUI, on pfSense CE version 2.5.0, pfSense Plus version 21.02-p1, and earlier versions of both. The page did not validate the contents of the Description field for Wake on LAN entries, nor did it encode the output when using the "Wake All Devices" function which prints this value, leading to a possible XSS. Due to the lack of proper encoding on the affected parameters susceptible to XSS, arbitrary JavaScript could be executed in the user's browser. The user's session cookie or other information from the session may be compromised.

Solution(s)

  • pfsense-upgrade-latest

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