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Not in CISA KEV
HIGH severity

CVE-2018-6874 — auth0-js

HIGH

CVE-2018-6874 is a high-severity (CVSS 8.8) Cross-Site Request Forgery (CSRF) vulnerability in auth0-js. A fix is available for auth0-js — see the affected versions and patch details below.

Cross-Site Request Forgery (CSRF) in Auth0

Also known asGHSA-wv26-rj8c-4r33
Published
Updated
Affected
1 pkg
Patched
1 / 1
Exploits
None indexed
Exploitation data as of Oct 5, 2026 · OSV.dev, NVD, FIRST.org (EPSS)

EPSS Exploitation Probability

via FIRST.org ↗
0.7%probability of exploitation in next 30 days
Lower Risk0.00%
Lower risk than most CVEs53th percentile — riskier than 53% of all scored CVEsHighest risk
0.24%0.57%0.90%1.24%0.7%0.7%Oct 26Oct 26

Probability of exploitation in the next 30 days, from FIRST.org EPSS.

How urgent is this, really

Where this sits among everything scored

Real-World Exposure

1 pkg affected

How broadly this vulnerability is actually deployed: weekly install volume shows current usage, and reverse-dependency count shows how many other packages break if it stays unpatched.

416other npm packages depend on this — each one inherits the vulnerability until it's patched upstream
auth0-jsnpm
282Kdownloads / week

Description

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

Affected Packages

1 total 1 fixed
EcosystemPackageVulnerable rangeFix
📦npmauth0-jsall versions9.0.0npm install auth0-js@9.0.0

Affected Products

1 product · 1 configurations
Application
auth0.jsauth0
≤ 8.12.1
range

Detection & mitigation playbook

Open-source dependency

  1. Detect

    Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for auth0-js, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.

  2. Fix

    Update auth0-js to 9.0.0 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms CVE-2018-6874 is resolved across your whole dependency graph.

  3. Workarounds

    If you can't upgrade right away: gate or disable the affected feature, validate untrusted input at the boundary, and avoid passing attacker-controlled data into the vulnerable path. O3's runtime protection blocks exploitation in production as an interim safeguard until the upgrade lands.

Frequently Asked Questions

CSRF exists in the Auth0 authentication service through 14591 if the Legacy Lock API flag is enabled.
O3 Security · Impact-Aware SCA

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CVE-2018-6874: auth0-js CSRF — Fixed in 9.0.0