CVE-2021-36191

Published: Dec 8, 2021Modified: Jun 17, 2026

5.4

Vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

Exploitability: 2.3 / Impact: 2.7

Source: NVD

Description

A url redirection to untrusted site ('open redirect') in Fortinet FortiWeb version 6.4.1 and below, 6.3.15 and below allows attacker to use the device as proxy via crafted GET parameters in requests to error handlers

Affected (8)

Products: Fortinet: Fortiweb

Fortinet

1 product

Fortiweb

Configuration A

8 vulnerable

Vulnerable Software	Affected Versions
Fortinet Fortiweb	From 6.0.0 to 6.0.7
Fortinet Fortiweb	From 6.2.0 to 6.2.6
Fortinet Fortiweb	From 6.3.0 to 6.3.15
Fortinet Fortiweb	Version 6.1.0
Fortinet Fortiweb	Version 6.1.1
Fortinet Fortiweb	Version 6.1.2
Fortinet Fortiweb	Version 6.4.0
Fortinet Fortiweb	Version 6.4.1

Related CWEs

CWE-601

URL Redirection to Untrusted Site ('Open Redirect')

A web application accepts a user-controlled input that specifies a link to an external site, and uses that link in a Redirect. This simplifies phishing attacks.

References (2)

https://fortiguard.com/advisory/FG-IR-21-133

Source: psirt@fortinet.com

PatchVendor Advisory

https://fortiguard.com/advisory/FG-IR-21-133

Source: af854a3a-2127-422b-91ae-364da2661108

PatchVendor Advisory

Timeline

No history available yet.