CVE-2023-50811
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 · uneditedAn issue discovered in SELESTA Visual Access Manager 4.38.6 allows attackers to modify the “computer” POST parameter related to the ID of a specific reception by POST HTTP request interception. Iterating that parameter, it has been possible to access to the application and take control of many other receptions in addition the assigned one.
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 confidenceSELESTA Visual Access Manager 4.38.6 contains an Insecure Direct Object Reference (IDOR) vulnerability in the 'computer' POST parameter handling. Attackers can intercept HTTP POST requests and modify the reception ID parameter to access and control receptions belonging to other users. The parameter uses sequential/iterable IDs, enabling unauthorized horizontal access beyond the user's assigned reception.
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= 4.38.6CVSS 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
- None
- Integrity
- High
- Availability
- None
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/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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Identify installed product versionLocate the SELESTA Visual Access Manager installation and check the version metadata (typically in about dialog, installation directory, or software inventory)Affected if Version is exactly 4.38.6
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Confirm application handles HTTP POST requestsReview web application traffic or proxy logs for POST requests to the Visual Access Manager endpointsAffected if The application processes HTTP POST requests containing the 'computer' parameter
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Inspect reception access endpointsExamine the application's request handling code or configuration for endpoints that accept the 'computer' parameter (POST body)Affected if The 'computer' parameter is used to reference reception IDs without additional authorization checks
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Verify sequential ID pattern in useAnalyze application behavior or API responses to determine if reception IDs are sequential or iterable integersAffected if Reception IDs follow a predictable/sequential numbering scheme that could be enumerated
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Check authorization validation on reception accessReview server-side code or access control configuration for the reception access functionalityAffected if No ownership/authorization validation exists before processing requests using the 'computer' parameter
A user is affected if they have SELESTA Visual Access Manager version 4.38.6 deployed and the application exposes reception access via the 'computer' POST parameter without proper user ownership validation.
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 proper authorization checks to verify the authenticated user has rights to access the requested reception before processing requests. Replace direct object references with indirect/mapped references and enforce server-side validation of user permissions on all reception access operations.
- Consultation4.0 h
- Implementation8.0 h
- Testing4.0 h
- Review / QA2.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $5,120.
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Free · runs locallyCheck whether your project pulls in CVE-2023-50811 — 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-2023-50811 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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