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CVE-2025-48951

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Date: June 3, 2025

Auth0-PHP is a PHP SDK for Auth0 Authentication and Management APIs. Versions 8.0.0-BETA3 prior to 8.14.0 contain a vulnerability due to insecure deserialization of cookie data. If exploited, since SDKs process cookie content without prior authentication, a threat actor could send a specially crafted cookie containing malicious serialized data. Applications using the Auth0-PHP SDK are affected, as are applications using the Auth0/symfony, Auth0/laravel-auth0, or Auth0/wordpress SDKs, because those SDKsrely on the Auth0-PHP SDK versions from 8.0.0-BETA3 until 8.14.0. Version 8.14.0 contains a patch for the issue.

Severity Score

Related Resources (9)

https://github.com/auth0/wordpress/security/advisories/GHSA-862m-5253-832r
https://nvd.nist.gov/vuln/detail/CVE-2025-48951
https://github.com/auth0/symfony/security/advisories/GHSA-98j6-67v3-mw34
https://github.com/auth0/auth0-PHP/commit/04b1f5daa8bdfebc5e740ec5ca0fb2df1648a715
https://github.com/auth0/auth0-PHP
https://github.com/auth0/laravel-auth0/security/advisories/GHSA-c42h-56wx-h85q
https://github.com/auth0/auth0-PHP/commit/52a79480fdb246f59dbc089b81a784ae049bd389
https://github.com/auth0/auth0-PHP/security/advisories/GHSA-v9m8-9xxp-q492
https://www.mend.io/vulnerability-database/CVE-2025-48951

Severity Score

Weakness Type (CWE)

Deserialization of Untrusted Data

CWE-502

Top Fix

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Upgrade Version

Upgrade to version https://github.com/auth0/auth0-PHP.git - 8.14.0

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CVSS v3.1

Base Score:
Attack Vector (AV): NETWORK
Attack Complexity (AC): LOW
Privileges Required (PR): NONE
User Interaction (UI): NONE
Scope (S): CHANGED
Confidentiality (C): NONE
Integrity (I): HIGH
Availability (A): NONE

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