GHSA-V9M8-9XXP-Q492

Vulnerability from github – Published: 2025-06-04 20:31 – Updated: 2025-06-04 22:56
VLAI?
Summary
Auth0-PHP SDK Deserialization of Untrusted Data vulnerability
Details

Overview The Auth0 PHP SDK contains 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.

Am I Affected? You are affected by this vulnerability if you meet the following preconditions:

  1. Applications using the Auth0-PHP SDK, versions between 8.0.0-BETA3 to 8.3.0.
  2. Applications using the following SDKs that rely on the Auth0-PHP SDK versions between 8.0.0-BETA3 to 8.3.0: a. Auth0/symfony, b. Auth0/laravel-auth0, c. Auth0/wordpress.

Fix Upgrade Auth0/Auth0-PHP to 8.3.1.

Acknowledgement Okta would like to thank Andreas Forsblom for discovering this vulnerability.

Severity ?
9.3 (Critical)
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
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{
  "affected": [
    {
      "package": {
        "ecosystem": "Packagist",
        "name": "auth0/auth0-php"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "8.0.0-BETA3"
            },
            {
              "fixed": "8.3.1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2025-48951"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-502"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2025-06-04T20:31:39Z",
    "nvd_published_at": "2025-06-03T21:15:21Z",
    "severity": "CRITICAL"
  },
  "details": "**Overview**\nThe Auth0 PHP SDK contains 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.\n\n**Am I Affected?**\nYou are affected by this vulnerability if you meet the following preconditions:\n\n1. Applications using the Auth0-PHP SDK, versions between 8.0.0-BETA3 to 8.3.0. \n2. Applications using the following SDKs that rely on the Auth0-PHP SDK versions between 8.0.0-BETA3 to 8.3.0:\n    a. Auth0/symfony,\n    b. Auth0/laravel-auth0,\n    c. Auth0/wordpress.\n\n**Fix**\nUpgrade Auth0/Auth0-PHP to 8.3.1.\n\n**Acknowledgement**\nOkta would like to thank Andreas Forsblom for discovering this vulnerability.",
  "id": "GHSA-v9m8-9xxp-q492",
  "modified": "2025-06-04T22:56:42Z",
  "published": "2025-06-04T20:31:39Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/auth0/auth0-PHP/security/advisories/GHSA-v9m8-9xxp-q492"
    },
    {
      "type": "WEB",
      "url": "https://github.com/auth0/laravel-auth0/security/advisories/GHSA-c42h-56wx-h85q"
    },
    {
      "type": "WEB",
      "url": "https://github.com/auth0/symfony/security/advisories/GHSA-98j6-67v3-mw34"
    },
    {
      "type": "WEB",
      "url": "https://github.com/auth0/wordpress/security/advisories/GHSA-862m-5253-832r"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-48951"
    },
    {
      "type": "WEB",
      "url": "https://github.com/auth0/auth0-PHP/commit/04b1f5daa8bdfebc5e740ec5ca0fb2df1648a715"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/auth0/auth0-PHP"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "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",
      "type": "CVSS_V4"
    }
  ],
  "summary": "Auth0-PHP SDK Deserialization of Untrusted Data vulnerability"
}


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  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



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