CVE-2019-16151

An improper neutralization of input during web page generation vulnerability [CWE-79] in FortiOS 6.4.1 and below, 6.2.9 and below may allow a remote unauthenticated attacker to either redirect users to malicious websites via a crafted "Host" header or to execute JavaScript code in the victim's browser context. This happens when the FortiGate has web filtering and category override enabled/configured.

CVSS v3 4.7 MEDIUM

4.7^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 2.8 / Impact : 1.4

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction REQUIRED

Confidentiality Impact NONE

Integrity Impact LOW

Availability Impact NONE

Scope CHANGED

References

Link	Resource
https://fortiguard.com/advisory/FG-IR-19-301	Vendor Advisory

Configurations

Configuration 1 (hide)

OR	cpe:2.3:o:fortinet:fortios::::::::
	cpe:2.3:o:fortinet:fortios::::::::

History

23 Jul 2025, 15:48

Type	Values Removed	Values Added
Summary		(es) Una vulnerabilidad de neutralización incorrecta de la entrada durante la generación de páginas web [CWE-79] en FortiOS 6.4.1 y anteriores, 6.2.9 y anteriores podría permitir que un atacante remoto no autenticado redirija a los usuarios a sitios web maliciosos mediante un encabezado "Host" manipulado o ejecute código JavaScript en el navegador de la víctima. Esto ocurre cuando FortiGate tiene habilitados o configurados el filtrado web y la anulación de categorías.
References	~~() https://fortiguard.com/advisory/FG-IR-19-301 -~~	() https://fortiguard.com/advisory/FG-IR-19-301 - Vendor Advisory
First Time		Fortinet fortios Fortinet
CPE		cpe:2.3:o:fortinet:fortios::::::::

21 Mar 2025, 16:15

Type	Values Removed	Values Added
New CVE

Information

Published : 2025-03-21 16:15

Updated : 2025-07-23 15:48

NVD link : CVE-2019-16151

Mitre link : CVE-2019-16151

CVE.ORG link : CVE-2019-16151

JSON object : View

Products Affected

fortinet

fortios

CWE

CWE-79

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

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