CVE-2023-51421
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 · uneditedUnrestricted Upload of File with Dangerous Type vulnerability in Soft8Soft LLC Verge3D Publishing and E-Commerce.This issue affects Verge3D Publishing and E-Commerce: from n/a through 4.5.2.
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 confidenceUnrestricted file upload vulnerability in Verge3D Publishing and E-Commerce allows attackers to upload dangerous file types (likely executable scripts) without proper validation. This could enable remote code execution by uploading malicious files such as PHP, JSP, or other web shells.
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<= 4.5.2CVSS 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
- None
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- High
- Availability
- High
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
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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Identify Verge3D installation and versionLocate the Verge3D installation directory and check the version file or application metadata to determine the installed version numberAffected if Version is 4.5.2 or lower (any version <= 4.5.2)
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Confirm Publishing/E-Commerce module is in useInspect the application configuration to determine whether the Publishing or E-Commerce feature is enabled and accessibleAffected if The Publishing or E-Commerce module is installed and active
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Examine file upload functionalityLocate the file upload endpoint or handler used by the Publishing/E-Commerce feature and inspect the validation logic for uploaded filesAffected if File upload accepts files without proper extension or MIME type validation
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Check upload directory locationIdentify where uploaded files are stored relative to the web root directoryAffected if Upload directory is within the web-accessible root or allows script execution
Environment is affected if Soft8soft Verge3D version 4.5.2 or lower is installed with the Publishing/E-Commerce module enabled and file uploads lack proper validation controls.
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 strict allowlist-based file type validation (checking both extension and MIME type), store uploads outside the web root, disable script execution in upload directories, and sanitize filenames to prevent path traversal attacks.
- Consultation8.0 h
- Implementation16.0 h
- Testing12.0 h
- Review / QA8.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $12,352.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2023-51421 — 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-2023-51421 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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