CVE-2019-16151

Description

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 v3.1 Score

4.7

MEDIUM

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

Weakness Type (CWE)

CWE-79 Cross-site Scripting (XSS)

Affected Products

Vendor	Product	Versions
fortinet	fortios	6.2.0 — 6.2.10
fortinet	fortios	6.4.0 — 6.4.2

References

Advisories & Patches

https://fortiguard.com/advisory/FG-IR-19-301

Frequently Asked Questions

What is 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. It has a CVSS v3.1 base score of 4.7 (MEDIUM).

How severe is CVE-2019-16151? +

CVE-2019-16151 has a CVSS v3.1 score of 4.7 out of 10, rated MEDIUM. This is a medium-severity vulnerability that should be remediated as part of regular maintenance.

What products are affected by CVE-2019-16151? +

CVE-2019-16151 affects products from fortinet, specifically: fortios. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2019-16151? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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