High severity · published Dec 17, 2025
CVE-2025-68129
Auth0-PHP SDK has Improper Audience Validation
7.5
CVSS
0.4%
EPSS
No
On KEV
Description
Auth0-PHP is a PHP SDK for Auth0 Authentication and Management APIs. In applications built with the Auth0-PHP SDK, the audience validation in access tokens is performed improperly. Without proper validation, affected applications may accept ID tokens as Access tokens. Projects are affected if they use Auth0-PHP SDK versions between v8.0.0 and v8.17.0, or applications using the following SDKs that rely on the Auth0-PHP SDK versions between v8.0.0 and v8.17.0: Auth0/symfony versions between 5.0.0 and 5.5.0, Auth0/laravel-auth0 versions between 7.0.0 and 7.19.0, and/or Auth0/wordpress plugin versions between 5.0.0-BETA0 and 5.4.0. Auth0/Auth0-PHP version 8.18.0 contains a patch for the issue.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
None
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.4% · higher than 37% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
AU
auth0-PHP · auth0
>= 8.0.0, < 8.18.0 · source: vendor, NVD
LA
Laravel-auth0 · Auth0
7.0.0 before 7.20.0 · source: NVD
SY
Symfony · Auth0
5.0.0 before 5.6.0 · source: NVD
WP
Wp-auth0 · Auth0
5.0.0 before 5.5.0 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2025-68129
CVE.org
https://www.cve.org/CVERecord?id=CVE-2025-68129
Patch
https://github.com/auth0/auth0-PHP/commit/7fe700053aee609718460c123f00f53c511f0f7f
Product
https://github.com/auth0/auth0-PHP/releases/tag/8.18.0
Vendor Advisory
https://github.com/auth0/auth0-PHP/security/advisories/GHSA-j2vm-wrq3-f7gf
Patch
https://github.com/auth0/laravel-auth0/commit/a1c3344dc0e5a36e8f56c8cfc535728d3d7558f3
Product
https://github.com/auth0/laravel-auth0/releases/tag/7.20.0
Vendor Advisory
https://github.com/auth0/laravel-auth0/security/advisories/GHSA-7hh9-gp72-wh7h
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