CVE-2023-22637Network attack vector

Remote code execution via crafted license XSS

Published May 3, 2023 · Updated Oct 23, 2024

Cross-site scripting in Fortinet FortiNAC License Management allows remote authenticated users to execute code via crafted licenses. License Management renders attacker-controlled license content into a web page without neutralizing executable markup. Exploitation requires an authenticated session and user interaction; successful payload execution runs code in the appliance context.

CVSS severity6.5
Medium
EPSS probability0.61%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Cross-site scripting in Fortinet FortiNAC License Management allows remote authenticated users to execute code via crafted licenses. License Management renders attacker-controlled license content into a web page without neutralizing executable markup. Exploitation requires an authenticated session and user interaction; successful payload execution runs code in the appliance context.

The record

CVE
CVE-2023-22637
Published
May 3, 2023
Updated
Oct 23, 2024
Vendor
Fortinet
Product
FortiNAC
Classifications
CWE-79
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. May 3, 2023CVE publishedPublication date reported by the CVE source.
  2. Oct 23, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=8.7.0 <=8.7.6
  2. Affected versionversion=8.8.0 <=8.8.11
  3. Affected versionversion=9.1.0 <=9.1.9
  4. Affected versionversion=9.2.0 <=9.2.7
  5. Affected versionversion=9.4.0 <=9.4.2

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Fortinet · FortiNACversion=8.7.0 <=8.7.6; version=8.8.0 <=8.8.11; version=9.1.0 <=9.1.9; version=9.2.0 <=9.2.7; version=9.4.0 <=9.4.2

Published CVSS scores

6.5Fortinet, Inc.CVSS:3.1/AV:L/AC:L/PR:H/UI:R/S:U/C:H/I:H/A:H
9.0NIST NVDCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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