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CVE-2026-5400

MEDIUM 6.4 CVSS 3.1
Published
September 19, 2026
Last modified
September 21, 2026
NVD status
Deferred
Reported by
security@wordfence.com
Weakness
CWE-79
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N

Description

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.

Affected WordPress components

A confirmed match is backed by the plugin or theme slug. A possible match is based on the product name only and should be verified.

Affected products and versions

  • davidanderson Redux Framework — Up to and including 4.5.13

References

  • github.com https://github.com/reduxframework/redux-framework/pull/4112/changes
  • plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/redux-framework/tags/4.5.10/redux-core/inc/extensions/users/class-redux-extension-users.php#L1034
  • plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/redux-framework/tags/4.5.10/redux-core/inc/fields/media/class-redux-media.php#L233
  • plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/redux-framework/tags/4.5.10/redux-core/inc/fields/media/class-redux-media.php#L337
  • plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/redux-framework/trunk/redux-core/inc/extensions/users/class-redux-extension-users.php#L1034
  • plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/redux-framework/trunk/redux-core/inc/fields/media/class-redux-media.php#L233
  • plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/redux-framework/trunk/redux-core/inc/fields/media/class-redux-media.php#L337
  • plugins.trac.wordpress.org https://plugins.trac.wordpress.org/changeset/3688279/redux-framework/trunk/redux-core/inc/fields/media/class-redux-media.php
  • plugins.trac.wordpress.org https://plugins.trac.wordpress.org/changeset?reponame=&new=3688279%40redux-framework%2Ftags%2F4.5.14&old=3582185%40redux-framework%2Ftags%2F4.5.13
  • www.wordfence.com https://www.wordfence.com/threat-intel/vulnerabilities/id/ca5b1ff6-19c5-4384-ae63-faf1f40122e7?source=cve
  • nvd.nist.gov Official NVD record