CVE-2023-5872Network attack vector

Authenticated project and username enumeration via response discrepancy

Published Apr 16, 2026 · Updated Apr 16, 2026

Observable discrepancy in WAGO Smart Designer 2.33.1 and earlier allows remote authenticated users to enumerate projects and usernames. The advisory identifies iterative requests to an unspecified endpoint but does not disclose the route or response difference that exposes valid entries. Low-privileged access is required, and the documented consequence is limited to disclosure of project and username existence.

CVSS severity4.3
Medium
EPSS probability0.32%
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

Observable discrepancy in WAGO Smart Designer 2.33.1 and earlier allows remote authenticated users to enumerate projects and usernames. The advisory identifies iterative requests to an unspecified endpoint but does not disclose the route or response difference that exposes valid entries. Low-privileged access is required, and the documented consequence is limited to disclosure of project and username existence.

The record

CVE
CVE-2023-5872
Published
Apr 16, 2026
Updated
Apr 16, 2026
Vendor
WAGO
Product
WAGO Smart Designer
Classifications
CWE-203, T1087
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Apr 16, 2026CVE publishedPublication date reported by the CVE source.
  2. Apr 16, 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=0.0.0 <=2.33.1

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

WAGO · WAGO Smart Designerversion=0.0.0 <=2.33.1

Published CVSS scores

4.3CERT@VDECVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

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-203Observable Discrepancy
T1087Account Discovery

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