Vulnerability details

CVE-2025-48951

auth0 auth0-PHP

Auth0-PHP SDK Deserialization of Untrusted Data vulnerability

CVSS 4.0
9.3Critical

Official 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.

CVSS scores

ScoreVersionSourceVector
9.3Critical 4.0 CVEProject cvelistV5 (CNA) (GitHub_M) 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

Affected products

VendorProductVersionsSource
auth0 auth0-PHP >= 8.0.0-BETA3, < 8.3.1 CVEProject cvelistV5 (CNA)

References and advisories

5
Kolun on Telegram @kolunsec Exploited CVEs, key news and a daily digest Alerts for this product's next CVEsFollow the product to get new vulnerabilities on Telegram.

Details

Published
2025-06-04
Last updated
2025-06-05
State
Published
Assigner (CNA)
GitHub_M

Exploit prediction (EPSS)

0.75%
Probability of exploitation in 30 days
55.2%
Percentile (among all CVEs)

SSVC assessment (CISA)

Automatable
Yes
Exploitation
None
Technical impact
Partial

Weaknesses (CWE)

  • CWE-502
    Deserialization of Untrusted Data