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
session cookie or other information from the session may be compromised.