CVE-2024-31488Network attack vector

Authenticated script execution via unsanitized GUI input

Published May 14, 2024 · Updated Dec 16, 2025

Cross-site scripting in the FortiNAC GUI allows remote authenticated users to execute script in another user’s browser via crafted HTTP requests. Fortinet identifies the GUI as the affected component but does not disclose the handler, parameter, or output context; crafted input is insufficiently neutralized, producing stored and reflected XSS. Exploitation requires authentication and victim interaction, and successful script execution acts with the victim browser session’s access to the FortiNAC interface.

CVSS severity6.8
Medium
EPSS probability1.01%
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 the FortiNAC GUI allows remote authenticated users to execute script in another user’s browser via crafted HTTP requests. Fortinet identifies the GUI as the affected component but does not disclose the handler, parameter, or output context; crafted input is insufficiently neutralized, producing stored and reflected XSS. Exploitation requires authentication and victim interaction, and successful script execution acts with the victim browser session’s access to the FortiNAC interface.

The record

CVE
CVE-2024-31488
Published
May 14, 2024
Updated
Dec 16, 2025
Vendor
Fortinet
Product
FortiNAC
Classifications
CWE-79, T1203
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. May 14, 2024CVE publishedPublication date reported by the CVE source.
  2. Dec 16, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

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

  1. Affected versionversion=7.2.0 <=7.2.2
  2. Affected versionversion=8.7.0 <=8.7.6
  3. Affected versionversion=8.8.0 <=8.8.11
  4. Affected versionversion=9.1.0 <=9.1.10
  5. Affected versionversion=9.1.0 <=9.1..10
  6. Affected versionversion=9.2.0 <=9.2.8
  7. Affected versionversion=9.4.0 <=9.4.3

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Fortinet · FortiNACversion=7.2.0 <=7.2.2; version=8.7.0 <=8.7.6; version=8.8.0 <=8.8.11; version=9.1.0 <=9.1.10; version=9.1.0 <=9.1..10; version=9.2.0 <=9.2.8; version=9.4.0 <=9.4.3

Published CVSS scores

6.8Fortinet, Inc.CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:H/I:H/A:H
9.0NVDCVSS: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')
T1203Exploitation for Client Execution

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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