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pfSense: pfSense-SA-23_02.webgui: XSS vulnerability in the WebGUI

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pfSense: pfSense-SA-23_02.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 potential Cross-Site Scripting (XSS) vulnerability was found in system_camanager.php and system_certmanager.php, components of the pfSense Plus and pfSense CE software GUI. In both cases, the page did not validate or sanitize the description of CA or certificate entries when editing and saving existing entries. Existing validation covered other actions. There are several places around the GUI which display CA and Certificate descriptions without encoding. This problem is present on pfSense Plus version 22.05, pfSense CE version 2.6.0, and earlier versions of both. 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

References

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