CVE-2021-42116Network attack vector

Higher-privilege interface access via missing authorization

Published Nov 30, 2021 · Updated Aug 4, 2024

Improper access control in Business-DNA Solutions GmbH TopEase 7.1.27 and earlier allows remote authenticated users to view restricted functions. The front-end source exposes identifiers for the Shape Editor and Settings, and server-side authorization fails to enforce their higher-privilege restrictions. A valid low-privilege account is required; exploitation exposes those restricted interfaces without reported data modification or service interruption.

CVSS severity4.3
Medium
EPSS probability0.80%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper access control in Business-DNA Solutions GmbH TopEase 7.1.27 and earlier allows remote authenticated users to view restricted functions. The front-end source exposes identifiers for the Shape Editor and Settings, and server-side authorization fails to enforce their higher-privilege restrictions. A valid low-privilege account is required; exploitation exposes those restricted interfaces without reported data modification or service interruption.

The record

CVE
CVE-2021-42116
Published
Nov 30, 2021
Updated
Aug 4, 2024
Vendor
Business-DNA Solutions GmbH
Product
TopEase
Classifications
CWE-284
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Nov 30, 2021CVE publishedPublication date reported by the CVE source.
  2. Aug 4, 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=unspecified <=7.1.27

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Business-DNA Solutions GmbH · TopEaseversion=unspecified <=7.1.27

Published CVSS scores

4.3NCSC.chCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
4.3NIST NVDCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
4.0NIST NVDAV:N/AC:L/Au:S/C:P/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-284Improper Access Control

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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