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pfSense: pfSense-SA-22_05.webgui: XSS vulnerability in the WebGUI

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pfSense: pfSense-SA-22_05.webgui: XSS vulnerability in the WebGUI

Severity
4
CVSS
(AV:L/AC:M/Au:N/C:P/I:P/A:P)
Published
02/15/2023
Created
02/17/2023
Added
02/16/2023
Modified
02/17/2023

Description

A Cross-Site Scripting (XSS) vulnerability was found in firewall_aliases.php, a component of the pfSense Plus and pfSense CE software GUI. This problem is present on pfSense Plus version 22.05, pfSense CE version 2.6.0, and earlier versions of both. The page did not sanitize the contents of URL Table Alias URL parameters nor did it encode the output when it included the value of that parameter in the page when viewing the list of aliases on the URL or All tabs, 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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