CVE-2025-47275

Brute Force Authentication Tags of CookieStore Sessions in Auth0-PHP SDK

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.

Category

9.1
CVSS
Severity: Critical
CVSS 3.1 •
EPSS 0.04%
Affected: auth0 auth0-PHP
Published at:
Updated at:

References

Link Tags
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

Frequently Asked Questions

What is the severity of CVE-2025-47275?
CVE-2025-47275 has been scored as a critical severity vulnerability.
How to fix CVE-2025-47275?
To fix CVE-2025-47275, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2025-47275 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2025-47275 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2025-47275?
CVE-2025-47275 affects auth0 auth0-PHP.
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