Description

Auth0-PHP provides the PHP SDK for Auth0 Authentication and Management APIs. Starting in version 8.0.0-BETA1 and prior to version 8.14.0, session cookies of applications using the Auth0-PHP SDK configured with CookieStore have authentication tags that can be brute forced, which may result in unauthorized access. Certain pre-conditions are required to be vulnerable to this issue: Applications using the Auth0-PHP SDK, or the Auth0/symfony, Auth0/laravel-auth0, and Auth0/wordpress SDKs that rely on the Auth0-PHP SDK; and session storage configured with CookieStore. Upgrade Auth0/Auth0-PHP to v8.14.0 to receive a patch. As an additional precautionary measure, rotating cookie encryption keys is recommended. Note that once updated, any previous session cookies will be rejected.

Classification

CVE ID: CVE-2025-47275

CVSS Base Severity: CRITICAL

CVSS Base Score: 9.1

CVSS Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

Affected Products

Vendor: auth0

Product: auth0-PHP

Exploit Prediction Scoring System (EPSS)

EPSS Score: 0.04% (probability of being exploited)

EPSS Percentile: 10.68% (scored less or equal to compared to others)

EPSS Date: 2025-06-06 (when was this score calculated)

References

https://nvd.nist.gov/vuln/detail/CVE-2025-47275
https://github.com/auth0/auth0-PHP/security/advisories/GHSA-g98g-r7gf-2r25
https://github.com/auth0/laravel-auth0/security/advisories/GHSA-9fwj-9mjf-rhj3
https://github.com/auth0/symfony/security/advisories/GHSA-9wg9-93h9-j8ch
https://github.com/auth0/wordpress/security/advisories/GHSA-2f4r-34m4-3w8q
https://github.com/auth0/auth0-PHP/commit/52a79480fdb246f59dbc089b81a784ae049bd389
https://github.com/auth0/auth0-PHP/releases/tag/8.14.0

Timeline