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Vulnerability record · CVE-2017-17068 · published 6 December 2017

CVE-2017-17068: Auth0.js information exposure vulnerability

Auth0 · Auth0.Js

A cross-origin vulnerability has been discovered in the Auth0 auth0.js library affecting versions < 8.12. This vulnerability allows an attacker to acquire authenticated users' tokens and invoke services on a user's behalf if the target site or application uses a popup callback page with auth0.popup.callback().

7.5 CVSS 3.0 High EPSS 1.4% · top 28.2% CWE-200 · Information exposure
7.5CVSS 3.0 base score, v2 5.0
1.4%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
4References, 2 tagged exploit
17 Jun 2026Last modified by NVD

Description

A cross-origin vulnerability has been discovered in the Auth0 auth0.js library affecting versions < 8.12. This vulnerability allows an attacker to acquire authenticated users' tokens and invoke services on a user's behalf if the target site or application uses a popup callback page with auth0.popup.callback().

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://appcheck-ng.com/appcheck-discovers-vulnerability-auth0-library-cve-2017-17068/ ExploitIssue TrackingThird Party Advisory
https://auth0.com/docs/security/bulletins/cve-2017-17068 Issue TrackingVendor Advisory
https://appcheck-ng.com/appcheck-discovers-vulnerability-auth0-library-cve-2017-17068/ ExploitIssue TrackingThird Party Advisory
https://auth0.com/docs/security/bulletins/cve-2017-17068 Issue TrackingVendor Advisory

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

9.8CVE-2018-6873Auth0.js improper authentication vulnerabilityThe Auth0 authentication service before 2017-10-15 allows privilege escalation because the JWT audience is not validated.EPSS 2.2%8.8CVE-2018-6874Auth0.js cross-site request forgery vulnerabilityCSRF exists in the Auth0 authentication service through 14591 if the Legacy Lock API flag is enabled.EPSS 0.74%8.8CVE-2018-7307Auth0.js cross-site request forgery vulnerabilityThe Auth0 Auth0.js library before 9.3 has CSRF because it mishandles the case where the authorization response lacks the state parameter.EPSS 0.51%7.7CVE-2020-15125Auth0.js error message information leak vulnerabilityIn auth0 (npm package) versions before 2.27.1, a DenyList of specific keys that should be sanitized from the request object contained in the error ob…EPSS 1.5%7.1CVE-2026-42280Auth0.js incorrect authorization vulnerabilityAuth0.js is a client-side JavaScript library for Auth0. From 8.11.0 to 9.32.0, under specific preconditions, the Auth0.js SDK may improperly return u…EPSS 0.29%4.9CVE-2020-5263Auth0.js insufficiently protected credentials vulnerabilityauth0.js (NPM package auth0-js) greater than version 8.0.0 and before version 9.12.3 has a vulnerability. In the case of an (authentication) error, t…EPSS 0.87%5.9CVE-2025-68686FortiOS symbolic link patch bypass exposes sensitive informationFortiOS contains an information exposure flaw (CWE-200) that lets a remote unauthenticated attacker bypass the patch for the symbolic link persistenc…KEVEPSS 30%analysed7.5CVE-2026-20133Cisco Catalyst SD-WAN Manager insufficient file system restrictions expose dataCisco Catalyst SD-WAN Software has insufficient file system restrictions that let an attacker read sensitive files on the underlying operating system…KEVEPSS 32%analysed

Source: NIST National Vulnerability Database (record CVE-2017-17068), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.