Auth0 Auth0-PHP up to 8.17.x authorization

Summaryinfo

A vulnerability, which was classified as problematic, was found in Auth0 Auth0-PHP up to 8.17.x. Affected is an unknown function. Such manipulation leads to authorization. This vulnerability is traded as CVE-2025-68129. The attack may be launched remotely. There is no exploit available. You should upgrade the affected component.

Detailsinfo

A vulnerability was found in Auth0 Auth0-PHP up to 8.17.x. It has been rated as problematic. Affected by this issue is some unknown functionality. The manipulation with an unknown input leads to a authorization vulnerability. Using CWE to declare the problem leads to CWE-863. The product performs an authorization check when an actor attempts to access a resource or perform an action, but it does not correctly perform the check. This allows attackers to bypass intended access restrictions. Impacted is confidentiality, integrity, and availability. CVE summarizes:

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.

The advisory is available at github.com. This vulnerability is handled as CVE-2025-68129 since 12/15/2025. The exploitation is known to be difficult. The attack may be launched remotely. The technical details are unknown and an exploit is not available.

Upgrading to version 8.18.0 eliminates this vulnerability. The upgrade is hosted for download at github.com. Applying the patch 7fe700053aee609718460c123f00f53c511f0f7f is able to eliminate this problem. The bugfix is ready for download at github.com. The best possible mitigation is suggested to be upgrading to the latest version.

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Productinfo

Type

• Programming Language Software

Vendor

• Auth0

Name

• Auth0-PHP

Version

• 8.0
• 8.1
• 8.2
• 8.3
• 8.4
• 8.5
• 8.6
• 8.7
• 8.8
• 8.9
• 8.10
• 8.11
• 8.12
• 8.13
• 8.14
• 8.15
• 8.16
• 8.17

License

• open-source

Website

• Product: https://github.com/auth0/auth0-PHP/

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