GHSA-862M-5253-832R

Vulnerability from github – Published: 2025-06-05 01:19 – Updated: 2025-06-05 01:19
VLAI
Summary
Auth0 Wordpress Plugin vulnerable to Deserialization of Untrusted Data
Details

Overview The Auth0 Wordpress plugin contains a critical 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 WordPress plugin, versions between 5.0.0 BETA-0 to 5.0.1.
  2. Auth0 WordPress plugin uses the Auth0-PHP SDK with version 8.0.0-BETA3 to 8.3.0.

Fix Upgrade the Auth0 WordPress plugin to the latest version (v5.3.0).

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": [
    {
      "database_specific": {
        "last_known_affected_version_range": "\u003c= 5.0.1"
      },
      "package": {
        "ecosystem": "Packagist",
        "name": "auth0/wordpress"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "5.0.0-BETA0"
            },
            {
              "fixed": "5.1.0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [],
  "database_specific": {
    "cwe_ids": [
      "CWE-502"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2025-06-05T01:19:24Z",
    "nvd_published_at": null,
    "severity": "CRITICAL"
  },
  "details": "**Overview**\nThe Auth0 Wordpress plugin contains a critical 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 WordPress plugin, versions between 5.0.0 BETA-0 to 5.0.1. \n2. Auth0 WordPress plugin uses the Auth0-PHP SDK with version 8.0.0-BETA3 to 8.3.0.\n\n**Fix**\nUpgrade the Auth0 WordPress plugin to the latest version (v5.3.0).",
  "id": "GHSA-862m-5253-832r",
  "modified": "2025-06-05T01:19:24Z",
  "published": "2025-06-05T01:19:24Z",
  "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": "PACKAGE",
      "url": "https://github.com/auth0/wordpress"
    }
  ],
  "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 Wordpress Plugin vulnerable to Deserialization of Untrusted Data"
}



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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

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Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



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