Contact Management SystemApplication · Fabian

CVE-2026-2174

CRITICAL · 9.8 CVSS v3.1 Published 2026-02-08
Mitigation only
No fix yet — a mitigation exists. There is no fixed release. A documented workaround reduces exposure in the meantime.
See remediation →
100/100
Remediation priority · Urgent
Remotely reachable No privileges Zero-click

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 · unedited
A security flaw has been discovered in code-projects Contact Management System 1.0. This affects an unknown part of the component CRUD Endpoint. The manipulation of the argument ID results in improper authentication. The attack may be launched remotely.

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 confidence

A critical improper authentication vulnerability exists in the CRUD endpoint of code-projects Contact Management System 1.0. The application fails to properly validate authentication when manipulating the ID argument, allowing remote attackers to bypass authentication controls. The CVSS 9.8 score indicates trivial exploitability with no user interaction required.

MitigationImplement proper authentication and authorization checks on all CRUD operations, validate user sessions server-side, and ensure the ID parameter cannot be manipulated to access unauthorized records.

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
Contact Management SystemApplication
Affected:= 1.0

CVSS 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
High
Integrity
High
Availability
High

CVSS:3.1/AV:N/AC:L/PR:N/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 checks

Work through these to decide whether this CVE applies to you.

  1. Confirm installed product version
    Locate the Fabian Contact Management System installation and identify its version number, typically found in the application header, about page, or configuration files
    Affected if Version is 1.0 exactly
  2. Identify CRUD endpoint availability
    Locate the contact management CRUD endpoint URLs, typically found in application routing configuration, API documentation, or by enumerating common paths such as /contacts, /api/contacts, or similar endpoints
    Affected if CRUD endpoint is accessible and accepts ID parameters
  3. Verify authentication mechanism
    Review the application's authentication configuration and session management implementation to understand how users are validated
    Affected if Authentication relies solely on session cookies or tokens without verifying user ownership of requested contact IDs
  4. Test ID parameter manipulation
    Send authenticated requests to the CRUD endpoint with modified ID values different from the user's own contact IDs, observing whether access is granted or denied
    Affected if Requests with altered ID parameters succeed without proper authorization checks returning contact data or allowing modifications

A defender is affected if they run Fabian Contact Management System version 1.0 and the CRUD endpoint permits access or modification of contact records by manipulating ID parameters without validating user ownership.

Generated from the published advisory. Verify against your own configuration.

Check your environment

Paste your version and any relevant configuration and it will be compared against the affected criteria above. Do not include secrets or credentials.

AI-assisted, checked against the advisory. Informational, not a guarantee.

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 data
Mitigation available No clean upgrade yet — mitigate in the meantime
Mitigation

Implement proper authentication and authorization checks on all CRUD operations, validate user sessions server-side, and ensure the ID parameter cannot be manipulated to access unauthorized records.

Fix this in Contact Management System Scoped from the published advisory
  • Consultation2.0 h
  • Implementation4.0 h
  • Testing2.0 h
  • Review / QA1.0 h
9.0 hours of engineering $1,600
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References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.

Primary sources

Practitioner notes

Contributed

Peer-ranked notes from engineers who’ve handled CVE-2026-2174 in production — separate from our analysis above.

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What this is

A place for practitioners to share what actually worked: a mitigation you’ve tested, a configuration change, a version- or environment-specific caveat, or a link to a verified patch. The most useful notes rise to the top as peers upvote them, so the signal stays high.

What belongs here
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  • Version or environment caveats, and links to real fixes
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