CVE-2021-42119
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 · uneditedPersistent Cross Site Scripting in Web Applications operating on Business-DNA Solutions GmbH’s TopEase® Platform Version <= 7.1.27 via the Search Functionality allows authenticated users with Object Modification privileges to inject arbitrary HTML and JavaScript in object attributes, which is then rendered in the Search Functionality, to alter the intended functionality and steal cookies, the latter allowing for account takeover.
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 · high confidenceA persistent (stored) XSS vulnerability in the TopEase® Platform version 7.1.27 and earlier allows authenticated users with Object Modification privileges to inject arbitrary HTML and JavaScript into object attributes. These malicious payloads are stored and then rendered when users access the Search Functionality, enabling attackers to steal session cookies and achieve account takeover.
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<= 7.1.27CVSS 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 checksWork through these to decide whether this CVE applies to you.
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Verify TopEase platform versionLocate the TopEase installation and check the version number. Common methods include: reviewing the software about page, checking the version displayed in the admin panel, or examining version files in the installation directory.Affected if The installed version is 7.1.27 or any version lower than 7.1.27.
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Confirm Object Modification privilege existsAccess the TopEase administrative interface and review user roles or permission settings. Look for users or groups assigned the Object Modification capability.Affected if Any user account possesses Object Modification privileges, allowing them to alter object attributes.
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Determine if Search Functionality is activeVerify that the Search Functionality module is enabled and accessible within the TopEase platform. Check the feature configuration or module status in the admin settings.Affected if The Search Functionality is enabled and accessible to users.
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Inspect object attributes for suspicious contentExamine stored object attributes in the database or through the platform interface. Look for HTML tags, script elements, javascript: URIs, or event handler attributes (onload, onerror, onmouseover, etc.) within attribute values.Affected if Object attributes contain unsanitized HTML or JavaScript payloads, particularly script tags or event handlers.
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Review search results renderingUse the Search Functionality to retrieve objects and inspect the HTML output in the response. Examine whether user-supplied attribute data is rendered without proper encoding.Affected if Search results render raw HTML or JavaScript from object attributes without encoding or escaping.
You are affected if your TopEase version is 7.1.27 or earlier, users with Object Modification privileges can inject scripts into object attributes, and the Search Functionality renders these attributes without encoding, allowing stored XSS execution.
Generated from the published advisory. Verify against your own configuration.
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.
From vendor dataImplement robust input validation and output encoding/escaping on all object attributes rendered in the Search Functionality to neutralize malicious script content. If available, apply vendor-supplied patches for versions greater than 7.1.27.
- Consultation6.0 h
- Implementation12.0 h
- Testing6.0 h
- Review / QA4.0 h
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Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2021-42119 — or any other known-vulnerable package — straight from your lock files. Free and open source; it runs locally and uploads nothing.
References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.
Primary sourcesPractitioner notes
ContributedPeer-ranked notes from engineers who’ve handled CVE-2021-42119 in production — separate from our analysis above.
The advisory tells you what broke. It rarely tells you what actually worked. If you’ve dealt with this one, that detail is what the next engineer is searching for.
- The version that genuinely resolved it — not the one the vendor claimed
- A config change or rule that shut the vector down
- A gotcha in the upgrade path that cost you an afternoon
No notes yet
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- Verified mitigations, workarounds, and config changes
- Version or environment caveats, and links to real fixes
- No weaponised exploit code, or anything meant to cause harm
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