Several improper neutralization of inputs during web page generation vulnerability [CWE-79] in FortiNAC 9.4.1 and below, 9.2.6 and below, 9.1.8 and below, 8.8.11 and below, 8.7.6 and below, 8.6.5 and below, 8.5.4 and below, 8.3.7 and below may allow an authenticated attacker to perform several XSS attacks via crafted HTTP GET requests.