CVE-2023-27195Public exploitNetwork attack vector

Unauthenticated account creation via exposed registration code

Published Nov 8, 2024 · Updated Nov 8, 2024

Broken access control in Trimble TM4Web 22.2.0 allows remote attackers to obtain a registration code and create an account. The UserfromUUID action at /inc/tm_ajax.msw returns the latest registration access code when uuid is empty, without requiring authentication. Possession of that code permits account registration; if it belongs to an Administrator registration, the new account receives full administrative privileges.

CVSS severity9.8
Critical
EPSS probability1.01%
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

Broken access control in Trimble TM4Web 22.2.0 allows remote attackers to obtain a registration code and create an account. The UserfromUUID action at /inc/tm_ajax.msw returns the latest registration access code when uuid is empty, without requiring authentication. Possession of that code permits account registration; if it belongs to an Administrator registration, the new account receives full administrative privileges.

The record

CVE
CVE-2023-27195
Published
Nov 8, 2024
Updated
Nov 8, 2024
Vendor
Trimble Inc.
Product
TM4Web
Classifications
CWE-276, T1136
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Nov 8, 2024CVE publishedPublication date reported by the CVE source.
  2. Nov 8, 2024Record 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=22.2.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Trimble Inc. · TM4Webversion=22.2.0

Published CVSS scores

9.8CISA-ADPCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/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
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-276Incorrect Default Permissions
T1136Create Account

Public exploit references

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