CVE-2023-40460Network attack vector

Authenticated device alteration via unvalidated file uploads

Published Dec 4, 2023 · Updated Feb 25, 2026

Cross-site scripting in ACEManager in Sierra Wireless ALEOS 4.16 and earlier allows remote authenticated users to alter device functionality. ACEManager accepts uploaded files without validating their names or types, enabling client-side script execution in its management interface. Access to an authenticated ACEManager session is required, and the resulting changes persist until the device restarts.

CVSS severity7.1
High
EPSS probability0.48%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

See if you're affected

Explore vulnerability checks for your environment with Hinoki.

Book a demo

Summary

What happened

Cross-site scripting in ACEManager in Sierra Wireless ALEOS 4.16 and earlier allows remote authenticated users to alter device functionality. ACEManager accepts uploaded files without validating their names or types, enabling client-side script execution in its management interface. Access to an authenticated ACEManager session is required, and the resulting changes persist until the device restarts.

The record

CVE
CVE-2023-40460
Published
Dec 4, 2023
Updated
Feb 25, 2026
Vendor
Sierra Wireless
Product
ALEOS
Classifications
CWE-79, CWE-434, CAPEC-153, T1059.007
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Dec 4, 2023CVE publishedPublication date reported by the CVE source.
  2. Feb 25, 2026Record 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=0 <=4.9.8
  2. Affected versionversion=4.10 <=4.16

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Sierra Wireless · ALEOSversion=0 <=4.9.8; version=4.10 <=4.16

Published CVSS scores

7.1Sierra WirelessCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:L

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')
CWE-434Unrestricted Upload of File with Dangerous Type
CAPEC-153Input Data Manipulation
T1059.007Command and Scripting Interpreter: JavaScript/JScript

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

See the directory against your own environment.

Your stack

Check the software in your environment

Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.

Book a demo