CVE-2020-12010
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 · uneditedAdvantech WebAccess Node, Version 8.4.4 and prior, Version 9.0.0. Multiple relative path traversal vulnerabilities exist that may allow an authenticated user to use a specially crafted file to delete files outside the application’s control.
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 confidenceAdvantech WebAccess Node versions 8.4.4 and prior, as well as version 9.0.0, contain multiple path traversal vulnerabilities that allow authenticated users to manipulate file paths using specially crafted requests. These vulnerabilities enable deletion of files outside the application's intended directory scope due to insufficient validation of file paths in user-supplied input.
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<= 8.4.4= 9.0.0CVSS 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
- Local
- Complexity
- Low
- Privileges
- None
- User interaction
- Required
- Scope
- Unchanged
- Confidentiality
- None
- Integrity
- High
- Availability
- High
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/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 installed WebAccess Node versionLocate the Advantech WebAccess Node installation and check the version number. This is typically found in the application itself, in installation directories, or via the web interface version information.Affected if The installed version is 8.4.4 or any prior version (8.4.3, 8.4.2, etc.), or exactly version 9.0.0.
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Verify web interface authentication is enabledCheck if the WebAccess Node web interface requires authentication and whether user accounts are configured and active.Affected if The web interface authentication is enabled and functional, as the vulnerability requires authenticated user access.
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Check for file operation functionalityLocate and examine the file upload, download, or deletion functionality within the WebAccess Node web interface.Affected if File operation features are accessible to authenticated users through the web interface.
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Identify file operation endpointsReview the web application's API endpoints or scripts that handle file paths, looking for parameters that accept file paths in user-supplied input.Affected if The application accepts file paths as parameters in requests without proper validation.
You are affected if WebAccess Node version is 8.4.4 or earlier, or exactly 9.0.0, AND the web interface with authenticated user access is enabled and exposes file operation functionality.
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 input validation and path sanitization for all file operations, ensuring paths are constrained to allowed directories and using canonical path resolution to prevent directory traversal sequences (../) from accessing restricted areas.
- Consultation4.0 h
- Implementation12.0 h
- Testing6.0 h
- Review / QA3.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $7,040.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2020-12010 — 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-2020-12010 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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