---
id: CVE-2026-5400
title: >-
  The Redux Framework plugin for WordPress is vulnerable to Stored Cross-Site
  Scripting via the Media field filter values in versions up to, and including,
  4.5.13 This is due to insufficient input sanitization of nested array values
  in the…
summary: >-
  The Redux Framework plugin for WordPress is vulnerable to Stored Cross-Site
  Scripting via the Media field filter values in versions up to, and including,
  4.5.13 This is due to insufficient input sanitization of nested array values
  in the…
severity: medium
cvss: 6.4
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N'
cwe:
  - CWE-79
vendor: davidanderson
product: Redux Framework
affected:
  - redux_framework <= 4.5.13
published: '2026-09-19'
updated: '2026-09-21'
sourceUpdated: '2026-09-21T13:33:33.387'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-5400'
references:
  - url: 'https://github.com/reduxframework/redux-framework/pull/4112/changes'
    label: security@wordfence.com
  - url: >-
      https://plugins.trac.wordpress.org/browser/redux-framework/tags/4.5.10/redux-core/inc/extensions/users/class-redux-extension-users.php#L1034
    label: security@wordfence.com
  - url: >-
      https://plugins.trac.wordpress.org/browser/redux-framework/tags/4.5.10/redux-core/inc/fields/media/class-redux-media.php#L233
    label: security@wordfence.com
  - url: >-
      https://plugins.trac.wordpress.org/browser/redux-framework/tags/4.5.10/redux-core/inc/fields/media/class-redux-media.php#L337
    label: security@wordfence.com
  - url: >-
      https://plugins.trac.wordpress.org/browser/redux-framework/trunk/redux-core/inc/extensions/users/class-redux-extension-users.php#L1034
    label: security@wordfence.com
  - url: >-
      https://plugins.trac.wordpress.org/browser/redux-framework/trunk/redux-core/inc/fields/media/class-redux-media.php#L233
    label: security@wordfence.com
  - url: >-
      https://plugins.trac.wordpress.org/browser/redux-framework/trunk/redux-core/inc/fields/media/class-redux-media.php#L337
    label: security@wordfence.com
  - url: >-
      https://plugins.trac.wordpress.org/changeset/3688279/redux-framework/trunk/redux-core/inc/fields/media/class-redux-media.php
    label: security@wordfence.com
  - url: >-
      https://plugins.trac.wordpress.org/changeset?reponame=&new=3688279%40redux-framework%2Ftags%2F4.5.14&old=3582185%40redux-framework%2Ftags%2F4.5.13
    label: security@wordfence.com
  - url: >-
      https://www.wordfence.com/threat-intel/vulnerabilities/id/ca5b1ff6-19c5-4384-ae63-faf1f40122e7?source=cve
    label: security@wordfence.com
tags:
  - nvd
  - cve.org
epss: 0.00419
epssPercentile: 0.33548
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: partial
  timestamp: '2026-09-19T13:25:56.982054Z'
ingestedAt: '2026-09-19T07:59:56.106Z'
---

## Overview

The Redux Framework plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the Media field filter values in versions up to, and including, 4.5.13 This is due to insufficient input sanitization of nested array values in the user_meta_save() function and unsafe output of filter CSS values in the render() function without proper escaping. This makes it possible for authenticated attackers, with subscriber-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.