GHSA-2f4r-34m4-3w8q: Auth0/wordpress Remote Code Execution Vulnerability

CRITICAL
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CVSS 9.1
CWE-287
Published
Advisory Summary

GHSA-2f4r-34m4-3w8q is a CRITICAL (CVSS 9.1) remote code execution vulnerability (CWE-287: Improper Authentication) affecting Auth0/wordpress libraries in the Packagist ecosystem. The issue involves auth0 wordpress plugin vulnerable to brute force authentication tags of cookiestore sessions. Remediation is available by upgrading affected packages to version 5.3.0.

GHSA-2f4r-34m4-3w8q at a Glance

CVE Identifier N/A
GHSA Identifier GHSA-2f4r-34m4-3w8q
Severity CRITICAL
CVSS v3.1 Base Score 9.1
CWE Classification CWE-287: Improper Authentication
Affected Product Auth0/wordpress
Package Ecosystem Packagist
Published Date
Last Updated

Security Impact

CVSS: 9.1

The security impact metrics below are parsed directly from the CVSS v3.1 vector string (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N).

Attack Vector Network (AV:N)
Attack Complexity Low (AC:L)
Privileges Required None (PR:N)
User Interaction None (UI:N)
Scope Unchanged (S:U)
Confidentiality High (C:H)
Integrity High (I:H)
Availability None (A:N)

How to Fix GHSA-2f4r-34m4-3w8q

To remediate this vulnerability, upgrade all affected Auth0/wordpress dependencies to a patched release. Both direct and transitive dependencies should be checked, as frameworks or security libraries may pull in vulnerable versions transitively.

auth0/wordpress fixed: 5.3.0 
Upgrade auth0/wordpress to 5.3.0
Verify Direct and Transitive Dependencies

Run the following command in your project directory to verify that all resolved dependencies use the patched release: 

inspect dependencies for auth0/wordpress

How to Check if You Are Affected

To determine whether your application is affected by GHSA-2f4r-34m4-3w8q, inspect your project dependencies for Auth0/wordpress:

inspect dependencies for auth0/wordpress

Analyze the terminal output to locate any version of Auth0/wordpress in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 5.3.0), your application is affected.

Note: Verify declared build manifests and deployed runtime container environments.

Technical Details

Vulnerability Mechanism & Technical Analysis

This vulnerability is classified under CWE-287: Improper Authentication, where when an actor claims to have a given identity, the product does not prove or insufficiently proves that the claim is correct. In Auth0/wordpress, software state validation or input boundaries are circumvented during processing. Review the official source advisory statement below for specific affected components, classes, and reproduction details.

Source Advisory Statement

**Overview** Session cookies of applications using the Auth0 Wordpress plugin configured with CookieStore have authentication tags that can be brute forced, which may result in unauthorized access. **Am I Affected?** You are affected by this vulnerability if you meet the following pre-conditions: 1. Applications using the Auth0 WordPress Plugin with version <=5.2.1 2. Auth0 WordPress Plugin uses the Auth0-PHP SDK with version 8.0.0-BETA1 or higher and below 8.14.0. 3. Session storage configured with CookieStore. **Fix** Upgrade Auth0/wordpress plugin to v5.3.0. As an additional precautionary measure, we recommend rotating your cookie encryption keys. Note that once updated, any previous session cookies will be rejected. **Acknowledgement** Okta would like to thank Félix Charette for discovering this vulnerability.

GHSA-2f4r-34m4-3w8q Affected Auth0/wordpress Versions

1 component(s)
Fixed Versions:
5.3.0
Product / Package Ecosystem Affected Versions Fixed Version
auth0/wordpress
 Packagist
< 5.3.0
5.3.0

References

GitHub Advisory / Wiki ADVISORY
https://github.com/auth0/wordpress/security/advisories/GHSA-2f4r-34m4-3w8q
NVD — GHSA-2f4r-34m4-3w8q NVD
https://nvd.nist.gov/vuln/detail/CVE-2025-47275
Security Fix Commit FIX COMMIT
https://github.com/auth0/wordpress/commit/06b64468089472d8b62c881708be7eb3749b35ac
Auth0/wordpress Source Repository REPOSITORY
https://github.com/auth0/wordpress
Auth0/wordpress Release RELEASE
https://github.com/auth0/wordpress/releases/tag/5.3.0

Frequently Asked Questions

What is GHSA-2f4r-34m4-3w8q?
GHSA-2f4r-34m4-3w8q is a security vulnerability in Auth0/wordpress involving Auth0 Wordpress plugin Vulnerable to Brute Force Authentication Tags of CookieStore Sessions under CWE-287: Improper Authentication.
Which Auth0/wordpress versions are affected?
Affected versions include releases prior to 5.3.0 across affected packages: auth0/wordpress.
What version fixes GHSA-2f4r-34m4-3w8q?
Upgrading to 5.3.0 (or the latest patched release for your respective branch) resolves the vulnerability.
Is auth0/wordpress affected?
Yes, auth0/wordpress is affected in releases prior to 5.3.0. Upgrade your dependency to 5.3.0 or later.
What is the CVSS score of GHSA-2f4r-34m4-3w8q?
GHSA-2f4r-34m4-3w8q has a CVSS v3.1 base score of 9.1 (CRITICAL) with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N.
What CWE is associated with GHSA-2f4r-34m4-3w8q?
GHSA-2f4r-34m4-3w8q is classified under CWE-287: Improper Authentication (When an actor claims to have a given identity, the product does not prove or insufficiently proves that the claim is correct.).
How can I check Packagist dependencies for GHSA-2f4r-34m4-3w8q?
Run the dependency tree command: 'inspect dependencies for auth0/wordpress'. This command lists direct and transitive dependencies in your build configuration so you can verify if a vulnerable version is resolved.
Machine-readable OSV JSON OSV v1.5 Schema
Normalized schema output
View Raw JSON 
{
  "schema_version" : "1.4.0",
  "id" : "GHSA-2f4r-34m4-3w8q",
  "modified" : "2025-05-17T15:07:23Z",
  "published" : "2025-05-17T15:07:23Z",
  "aliases" : [ ],
  "summary" : "Auth0 Wordpress plugin Vulnerable to Brute Force Authentication Tags of CookieStore Sessions",
  "details" : "**Overview**\nSession cookies of applications using the Auth0 Wordpress plugin configured with CookieStore have authentication tags that can be brute forced, which may result in unauthorized access.\n\n**Am I Affected?**\nYou are affected by this vulnerability if you meet the following pre-conditions:\n1. Applications using the Auth0 WordPress Plugin with version <=5.2.1\n2. Auth0 WordPress Plugin uses the Auth0-PHP SDK with version 8.0.0-BETA1 or higher and below 8.14.0. \n3. Session storage configured with CookieStore.\n\n\n**Fix**\nUpgrade Auth0/wordpress plugin to v5.3.0. As an additional precautionary measure, we recommend rotating your cookie encryption keys. Note that once updated, any previous session cookies will be rejected.\n\n**Acknowledgement**\nOkta would like to thank Félix Charette for discovering this vulnerability.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "Packagist",
      "name" : "auth0/wordpress"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "5.3.0"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "WEB",
    "url" : "https://github.com/auth0/wordpress/security/advisories/GHSA-2f4r-34m4-3w8q"
  }, {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2025-47275"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/auth0/wordpress/commit/06b64468089472d8b62c881708be7eb3749b35ac"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/auth0/wordpress"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/auth0/wordpress/releases/tag/5.3.0"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-287" ],
    "severity" : "CRITICAL",
    "github_reviewed" : true,
    "github_reviewed_at" : "2025-05-17T15:07:23Z",
    "nvd_published_at" : null
  }
}