GHSA-j2vm-wrq3-f7gf: Auth0-PHP SDK has Improper Audience Validation

1. GitHub Advisory Database
2. GitHub Reviewed
3. CVE-2025-68129

Auth0-PHP SDK has Improper Audience Validation

Moderate severity GitHub Reviewed Published Dec 17, 2025 in auth0/auth0-PHP • Updated Dec 17, 2025

Package

composer auth0/auth0-php (Composer)

Affected versions

>= 8.0.0, < 8.18.0

Description

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.

Affected product and versions

Projects are affected if they meet the following preconditions:

• Applications using the 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:
  • a. Auth0/symfony,
  • b. Auth0/laravel-auth0,
  • c. Auth0/wordpress.

Resolution

Upgrade Auth0/Auth0-PHP to version 8.18.0 or greater.

Acknowledgement

Okta would like to thank Jafar Sadiq (iaf4r) for their discovery and responsible disclosure.

References

• GHSA-j2vm-wrq3-f7gf
• auth0/auth0-PHP@7fe7000
• https://github.com/auth0/auth0-PHP/releases/tag/8.18.0

Published to the GitHub Advisory Database

Dec 17, 2025

Last updated

Dec 17, 2025