CVE-2021-36191

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CVSS 3.1

5.4 medium

EPSS

<1%p42

Published

Dec 8, 2021 (Dec 8, 2021)

Modified

Jun 17, 2026

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

Vendors: fortinet
Products: fortiweb
Weakness: CWE-601
Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

NVD CVE.org GitHub PoCs EPSS (0.5%)

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