CVE-2023-28900
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 · uneditedThe Skoda Automotive cloud contains a Broken Access Control vulnerability, allowing to obtain nicknames and other user identifiers of Skoda Connect service users by specifying an arbitrary vehicle VIN number.
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 confidenceThe Skoda Automotive cloud API lacks proper authorization validation when retrieving user data associated with vehicle identification numbers (VINs). An attacker can query the API with any valid VIN to obtain associated user nicknames and other identifiers, indicating an Insecure Direct Object Reference (IDOR) or broken access control vulnerability where the service fails to verify the requesting user owns or has permission to access the specified vehicle.
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 dataall versionsCVSS 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
- None
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- Low
- Integrity
- None
- Availability
- None
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/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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Confirm Skoda Connect usageIdentify whether your organization or users utilize the Skoda Auto Skoda Connect cloud service for vehicle management or telematicsAffected if Skoda Connect is actively used as the cloud platform for vehicle data access
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Verify API authentication requirementInspect API documentation or capture network traffic to confirm that the affected endpoints require valid authentication credentials (such as OAuth tokens, API keys, or session tokens)Affected if API endpoints accept requests without requiring authentication tokens
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Check authorization validation for VIN-based queriesTest or inspect API responses when requesting user data associated with a vehicle identification number (VIN) - verify whether the API validates that the requesting user owns or has permission to access that specific vehicle before returning dataAffected if API returns user nicknames, identifiers, or personal data for any valid VIN without confirming the requester's ownership of that vehicle
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Identify exposed user identifiersReview API response payloads to determine what user-identifying information is returned - look for fields such as user nicknames, account identifiers, email addresses, or other personal data linked to VINsAffected if API responses expose user nicknames or other personal identifiers in association with vehicle data without ownership verification
You are affected if your environment uses Skoda Connect and the API returns user data for vehicle VINs without verifying that the requesting user owns or has permission to access that vehicle.
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 and enforce proper authentication and authorization checks to validate that the requesting user owns or has legitimate access rights to the vehicle before returning any associated user data. Additionally, consider removing or obfuscating unnecessary user identifiers exposed through API endpoints.
- Consultation4.0 h
- Implementation12.0 h
- Testing8.0 h
- Review / QA4.0 h
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Free · runs locallyCheck whether your project pulls in CVE-2023-28900 — 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-2023-28900 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
- No spam, self-promotion, credentials, or personal data