Read the docs
TI-2018-06672 Aliases CVE-2018-9186GHSA-46pc-6g7g-6hw8

Cross-site scripting in Fortinet FortiAuthenticator

Priority LOW 28CWE-79Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
Required
Attack complexity
Low
Impact type
Cross-site scripting
Confidentiality · integrity · availability
Low · Low · None
Fix status
No fix listed

Attack profile from CVSS 3.0 · NVD. Fix status from CNA. Impact type from CWE-79.

Summary

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.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00727 54th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
FortinetFortiAuthenticatorbelow 5.3.0 versions—No fix listedCNA
  • FortiAuthenticator VendorFortinet Affected below 5.3.0 versions Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:fortinet:fortiauthenticator:*:*:*:*:*:*:*:*4.0.0 to before 5.3.0VulnerableFortinet
  • cpe:2.3:a:fortinet:fortiauthenticator:*:*:*:*:*:*:*:* Versions 4.0.0 to before 5.3.0 Vulnerable ·Fortinet

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2018-9186
  2. 2026-10-03 Alias added: GHSA-46pc-6g7g-6hw8

References

  • TI-2026-32249 Improper access control in Fortinet FortiAuthenticator CVSS 3.1CRITICAL 9.1
  • TI-2021-08066 OS command injection in Fortinet FortiAuthenticator CVSS 3.1HIGH 8.8
  • TI-2021-05114 Uncontrolled resource consumption in Fortinet FortiSandbox, FortiAuthenticator CVSS 3.1HIGH 7.5
  • TI-2013-05746 FortiGuard FortiAuthenticator before 3.0 allows remote administrators to gain privileges via the command line interface. CVSS 2.0HIGH 9.0
  • TI-2021-19130 Information disclosure in Fortinet FortiAuthenticator CVSS 3.1HIGH 8.3
  • TI-2015-01319 Fortinet FortiAuthenticator 3.0.0 has a password of (1) slony for the slony PostgreSQL… CVSS 2.0HIGH 7.5
See all 23 →

Sources