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TopeaseApplication · Businessdnasolutions

CVE-2021-42117

MEDIUM · 5.4 CVSS v3.1 Published 2021-11-30
Fix available
A fix is available. Upgrade to after 7.1.27 or later.
See remediation →
58/100
Remediation priority · Elevated
Remotely reachable

Official description Straight from the sourceThe vendor's or NVD's own wording, published unedited. Authoritative, but often terse — it says what broke, rarely what to do.

NVD · unedited
Insufficient Input Validation in Web Applications operating on Business-DNA Solutions GmbH’s TopEase® Platform Version <= 7.1.27 allows an authenticated remote attacker with Object Modification privileges to insert arbitrary HTML without code execution.

Technical summary Written by usOur analysis, written from the advisory, the CVSS vector and the affected-version data. It adds context the advisory leaves out, and never invents facts that are not in the source.

dbcve analysis · moderate confidence

This is a stored HTML injection vulnerability in TopEase® Platform version 7.1.27 and earlier. An authenticated attacker with Object Modification privileges can inject arbitrary HTML into the application due to insufficient input validation. While the description specifies no code execution is possible, this still allows for phishing attacks, defacement, and manipulation of page content.

MitigationImplement strict input validation and output encoding for all user-supplied data. Update to a patched version if available. Apply HTML sanitization (e.g., allowlist approach) to neutralize malicious HTML tags before storage.

Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.

Affected products & versions What the vendor confirmedThe version ranges the vendor confirmed as vulnerable. If your version sits inside a range here, treat yourself as exposed until you have upgraded.

NVD · CPE data
TopeaseApplication
Affected:<= 7.1.27

CVSS breakdown How the score is builtThe industry scoring standard. It rates how the flaw is reached, what it takes to exploit, and what an attacker gains — the score is derived from those, not the other way round.

From the vector
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
Required
Scope
Changed
Confidentiality
Low
Integrity
Low
Availability
None

CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

Am I affected? How to checkSteps we derive from the advisory and the affected-version data, so you can decide whether this CVE reaches your setup. They are a guide, not a scan — your own configuration is the authority.

dbcve checks

Work through these to decide whether this CVE applies to you.

  1. Identify TopEase Platform version
    Locate the installed version of TopEase Platform. This is typically found in the application About section, in the software itself under Help > About, or in the system administration panel under version information.
    Affected if The installed version is 7.1.27 or any earlier version.
  2. Verify Object Modification privilege assignment
    Access the TopEase administration console and review user roles or permission groups. Check which users or roles have been granted Object Modification privileges.
    Affected if Any user account has Object Modification privileges enabled.
  3. Locate vulnerable input fields
    Identify the application areas where object/record creation or modification is possible. These are typically found in forms for creating or editing business objects, records, or custom fields.
    Affected if The application contains input fields in object modification workflows that accept user-supplied data for storage.
  4. Confirm lack of HTML sanitization
    Attempt to insert a benign HTML test string (such as <b>test</b> or <i>test</i>) into a modifiable object field while authenticated with Object Modification privileges. Observe whether the HTML tags are rendered as markup when the record is displayed.
    Affected if The injected HTML tags are rendered as visible markup rather than being encoded or stripped.

Your environment is affected if you are running TopEase Platform version 7.1.27 or earlier, have users with Object Modification privileges, and the application renders stored HTML tags without encoding.

Generated from the published advisory. Verify against your own configuration.

Check your environment

Paste your version and any relevant configuration and it will be compared against the affected criteria above. Do not include secrets or credentials.

AI-assisted, checked against the advisory. Informational, not a guarantee.

Remediation Closing itWhat it takes to close this. Where a vendor fix exists we point at it; where none exists we say so plainly, and can build one. Effort estimates are scoped from the advisory, not from your codebase.

dbcve · scoped
Upgrade available Upgrade to a release after 7.1.27
Interim mitigation

Implement strict input validation and output encoding for all user-supplied data. Update to a patched version if available. Apply HTML sanitization (e.g., allowlist approach) to neutralize malicious HTML tags before storage.

Recommended fix Moderate confidence

TopEase version greater than 7.1.27 (contact vendor for exact latest stable release)

  1. 1. Identify the current TopEase platform version in use by checking the system administration panel or version information page
  2. 2. Confirm the version is 7.1.27 or earlier (vulnerable)
  3. 3. Contact Business-DNA Solutions GmbH to obtain the latest stable version of TopEase that includes the fix for CVE-2021-42117
  4. 4. Schedule a maintenance window for the upgrade process
  5. 5. Perform a full backup of the TopEase database and configuration files
  6. 6. Follow the vendor's documented upgrade procedure to update to the fixed release
  7. 7. After upgrade, verify that the new version is greater than 7.1.27
  8. 8. Test the fix by attempting to insert HTML through an authenticated session with Object Modification privileges to confirm the input validation is properly enforced
Caveat Review vendor release notes for any breaking changes or configuration adjustments required when upgrading from 7.1.x to the fixed version

Generated from the published advisory — verify against the referenced sources before acting.

Fix this in Topease Scoped from the published advisory
  • Consultation6.0 h
  • Implementation12.0 h
  • Testing6.0 h
  • Review / QA4.0 h
28.0 hours of engineering $4,980
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References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.

Primary sources

Practitioner notes

Contributed

Peer-ranked notes from engineers who’ve handled CVE-2021-42117 in production — separate from our analysis above.

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What this is

A place for practitioners to share what actually worked: a mitigation you’ve tested, a configuration change, a version- or environment-specific caveat, or a link to a verified patch. The most useful notes rise to the top as peers upvote them, so the signal stays high.

What belongs here
  • Verified mitigations, workarounds, and config changes
  • Version or environment caveats, and links to real fixes
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