CVE-2025-48951

CRITICAL

auth0-php 8.0.0-BETA3-8.3.1 - Unauthenticated Deserialization of Untrusted Data via Cookie

Title source: llm
STIX 2.1

Description

Auth0-PHP is a PHP SDK for Auth0 Authentication and Management APIs. Versions 8.0.0-BETA3 prior to 8.3.1 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 8.3.1 contains a patch for the issue.

References (5)

Core 5

Scores

CVSS v4 9.3
EPSS 0.0062
EPSS Percentile 44.9%
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/SC:H/SI:H/SA:H/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

CISA SSVC

Vulnrichment
Exploitation none
Automatable yes
Technical Impact partial

Details

CWE
CWE-502
Status published
Products (2)
auth0/auth0-php 8.0.0-BETA3 - 8.3.1Packagist
auth0/auth0-PHP >= 8.0.0-BETA3, < 8.3.1
Published Jun 03, 2025
Tracked Since Feb 18, 2026