Critical severity · published Apr 4, 2018
CVE-2018-6873
The Auth0 authentication service before 2017-10-15 allows privilege escalation because the JWT audience is not validated
9.8
CVSS
2.2%
EPSS
No
On KEV
Description
The Auth0 authentication service before 2017-10-15 allows privilege escalation because the JWT audience is not validated.
CVSS vector
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)2.2% · higher than 83% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
AU
Auth0.js · Auth0
through 8.10.1 · source: NVD
Affected product
AU
Auth0.js
Auth0
More from Auth0.js
8.8
CVE-2018-6874
CSRF exists in the Auth0 authentication service through 14591 if the Legacy Lock API flag is enabled
8.8
CVE-2018-7307
The Auth0 Auth0.js library before 9.3 has CSRF because it mishandles the case where the authorization response lacks the state parameter
7.7
CVE-2020-15125
In 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 object is used
7.5
CVE-2017-17068
A cross-origin vulnerability has been discovered in the Auth0 auth0.js library affecting versions < 8.12
7.1
CVE-2026-42280
Improper Permission Checking in Auth.js SDK