dbcve.org
Incorrect AuthorizationWeakness · CWE-863

CVE-2026-4262

MEDIUM · 6.9 CVSS v4.0 Published 2026-03-26
Mitigation only
No fix yet — a mitigation exists. There is no fixed release. A documented workaround reduces exposure in the meantime.
See remediation →
78/100
Remediation priority · High
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
Vulnerability of incorrect authorization in HiJiffy Chatbot allows an attacker to download private messages from other users via the parameter 'ID' in '/api/v1/download/<ID>/'.

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 confidence

This is an Insecure Direct Object Reference (IDOR) vulnerability in the HiJiffy Chatbot application. The download endpoint at '/api/v1/download/<ID>/' fails to properly validate that the requesting user has authorization to access the resource identified by the ID parameter, allowing attackers to access private messages belonging to other users by manipulating this ID.

MitigationImplement proper authorization checks on the download endpoint to verify the requesting user owns or has permission to access the specific resource before returning any content. Additionally, consider implementing indirect object references and adding comprehensive access control validation across all API endpoints.

Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.

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
Authentication
X
User interaction
None
Scope
X

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

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. Identify HiJiffy Chatbot installation
    Locate the application and determine its installed version by reviewing application files, configuration, or admin interface
    Affected if The application is HiJiffy Chatbot and the version matches the affected range (if known)
  2. Verify download endpoint exists
    Check if the endpoint /api/v1/download/ is accessible in the application by reviewing API routes, swagger documentation, or attempting a request
    Affected if The endpoint exists and is reachable in the environment
  3. Confirm authorization is missing
    Attempt to access a resource using /api/v1/download/<ID>/ with an ID that belongs to a different user account or session
    Affected if The request succeeds and returns content that belongs to a different user without proper authorization validation

A user is affected if they have HiJiffy Chatbot deployed and the /api/v1/download/ endpoint returns private messages or files from other users when supplying a different user's resource ID.

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 authorization checks on the download endpoint to verify the requesting user owns or has permission to access the specific resource before returning any content. Additionally, consider implementing indirect object references and adding comprehensive access control validation across all API endpoints.

Have this fixed Scoped from the published advisory
  • Consultation4.0 h
  • Implementation8.0 h
  • Testing4.0 h
  • Review / QA3.0 h
19.0 hours of engineering $3,380
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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-2026-4262 in production — separate from our analysis above.

No notes yet

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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
  • 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