An incomplete filtering of one or more instances of special elements vulnerability [CWE-792] in the command line interpreter of FortiAP-W2 7.2.0 through 7.2.1, 7.0.3 through 7.0.5, 7.0.0 through 7.0.1, 6.4 all versions, 6.2 all versions, 6.0 all versions; FortiAP-C 5.4.0 through 5.4.4, 5.2 all versions; FortiAP 7.2.0 through 7.2.1, 7.0.0 through 7.0.5, 6.4 all versions, 6.0 all versions; FortiAP-U 7.0.0, 6.2.0 through 6.2.5, 6.0 all versions, 5.4 all versions may allow an authenticated attacker to read arbitrary files via specially crafted command arguments.