CVE-2018-9186

Name: CVE-2018-9186
Creator: NVD / NIST
Published: 2018-05-31T22:29:00.253+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 0.75%

Last modified Jun 17, 2026

CVE-2018-9186 is a vulnerability of currently unknown severity. A cross-site scripting (XSS) vulnerability in Fortinet FortiAuthenticator in versions 4.0.0 to before 5.3.0 "CSRF validation failure" page allows attacker to execute unauthorized script code via inject malicious scripts in HTTP referer header.. EPSS estimates a 0.75% chance of exploitation in the next 30 days.

Description

A cross-site scripting (XSS) vulnerability in Fortinet FortiAuthenticator in versions 4.0.0 to before 5.3.0 "CSRF validation failure" page allows attacker to execute unauthorized script code via inject malicious scripts in HTTP referer header.

Metrics

EPSS Probability

0.75%

50.4th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-79

Affected Software

Vendor	Product	Versions
Fortinet	Fortiauthenticator	>= 4.0.0, < 5.3.0

References

http://www.securityfocus.com/bid/104371Third Party Advisory, VDB Entry
https://fortiguard.com/advisory/FG-IR-18-059Vendor Advisory
http://www.securityfocus.com/bid/104371Third Party Advisory, VDB Entry
https://fortiguard.com/advisory/FG-IR-18-059Vendor Advisory

Timeline

Published: May 31, 2018
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2018-9186?

How severe is CVE-2018-9186?

Severity scoring for CVE-2018-9186 is pending analysis. The EPSS model estimates a 0.75% probability of exploitation in the next 30 days.

How do I fix CVE-2018-9186?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2018-9186?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST