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Auth0.jsApplication · Auth0

CVE-2018-6874

HIGH · 8.8 CVSS v3.0 Published 2018-04-04
Fix available
A fix is available. Upgrade to after 8.12.1 or later.
See remediation →
95/100
Remediation priority · Urgent
Remotely reachable No privileges

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
CSRF exists in the Auth0 authentication service through 14591 if the Legacy Lock API flag is enabled.

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 Cross-Site Request Forgery (CSRF) vulnerability exists in the Auth0 authentication service in versions up to 14591 when the Legacy Lock API flag is enabled. An attacker could exploit this to perform actions on behalf of authenticated users, potentially leading to unauthorized account access or configuration changes.

MitigationDisable the Legacy Lock API flag in the Auth0 dashboard and update to a patched version if available. Verify no production dependencies exist before disabling.

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
Auth0.jsApplication
Affected:<= 8.12.1

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
Required
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

CVSS:3.0/AV:N/AC:L/PR:N/UI:R/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. Identify Auth0.js version in your project
    Examine your package.json file or run a package manager command (npm list auth0-js, yarn list auth0-js) to determine the installed version of the auth0-js library
    Affected if The version listed is 8.12.1 or lower
  2. Locate the Legacy Lock API configuration
    Log into the Auth0 Dashboard and navigate to your tenant settings or the specific application configuration where the Legacy Lock API flag is located
    Affected if The Legacy Lock API flag is found and is currently enabled (set to on/true)

Your environment is affected if you have Auth0.js version 8.12.1 or lower AND the Legacy Lock API flag is enabled in your Auth0 configuration.

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
Upgrade available Upgrade to a release after 8.12.1
Interim mitigation

Disable the Legacy Lock API flag in the Auth0 dashboard and update to a patched version if available. Verify no production dependencies exist before disabling.

Fix this in Auth0.js Scoped from the published advisory
  • Consultation2.0 h
  • Implementation1.0 h
  • Testing2.0 h
  • Review / QA1.0 h
6.0 hours of engineering $1,060
Get the upgrade done

An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $1,696.

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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-2018-6874 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
  • 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