Fortinet FortiGate 6.2.2 < 6.2.6 / 6.4.x < 6.4.2 XSS (FG-IR-20-068)

medium Nessus Plugin ID 143482
New! Plugin Severity Now Using CVSS v3

The calculated severity for Plugins has been updated to use CVSS v3 by default. Plugins that do not have a CVSS v3 score will fall back to CVSS v2 for calculating severity. Severity display preferences can be toggled in the settings dropdown.


The remote host is affected by a cross-site scripting vulnerability.


The remote host is running a FortiOS version prior to 6.2.6 or 6.4.x prior to 6.4.2. It is, therefore, affected by a cross-site scripting vulnerability. An authenticated attacker may be able perform a reflected cross-site scripting attack by injecting unsanitized input into multiple parameters of the error page HTTP request.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.


Upgrade to Fortinet FortiOS version 6.2.6, 6.4.2 or later.

See Also

Plugin Details

Severity: Medium

ID: 143482

File Name: fortigate_FG-IR-20-068.nasl

Version: 1.8

Type: local

Family: Firewalls

Published: 12/4/2020

Updated: 6/3/2021

Dependencies: fortinet_version.nbin

Risk Information

CVSS Score Source: CVE-2020-15937


Risk Factor: Low

Score: 3


Risk Factor: Medium

Base Score: 4.3

Temporal Score: 3.2

Vector: AV:N/AC:M/Au:N/C:N/I:P/A:N

Temporal Vector: E:U/RL:OF/RC:C


Risk Factor: Medium

Base Score: 6.1

Temporal Score: 5.3

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Temporal Vector: E:U/RL:O/RC:C

Vulnerability Information

CPE: cpe:/o:fortinet:fortios

Required KB Items: Host/Fortigate/version

Exploit Ease: No known exploits are available

Patch Publication Date: 12/1/2020

Vulnerability Publication Date: 12/1/2020

Reference Information

CVE: CVE-2020-15937

IAVA: 2020-A-0547-S