What’s Vulnerable › Vulnerabilities
CVE-2026-5400: Redux Framework <= 4.5.13 - Authenticated (Subscriber+) Cross-Site Scripting via User Input
- Severity: medium (CVSS 6.4 v3.1)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 0.4% probability of exploitation in the next 30 days
- Public exploit or detection template: none known
- Published: 2026-09-19 · updated 2026-09-21
- Weakness: CWE-79
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 products
- davidanderson Redux Framework: through 4.5.13
References
- https://github.com/reduxframework/redux-framework/pull/4112/changes
- https://plugins.trac.wordpress.org/browser/redux-framework/tags/4.5.10/redux-core/inc/extensions/users/class-redux-extension-users.php#L1034
- https://plugins.trac.wordpress.org/browser/redux-framework/tags/4.5.10/redux-core/inc/fields/media/class-redux-media.php#L233
- https://plugins.trac.wordpress.org/browser/redux-framework/tags/4.5.10/redux-core/inc/fields/media/class-redux-media.php#L337
- https://plugins.trac.wordpress.org/browser/redux-framework/trunk/redux-core/inc/extensions/users/class-redux-extension-users.php#L1034
- https://plugins.trac.wordpress.org/browser/redux-framework/trunk/redux-core/inc/fields/media/class-redux-media.php#L233
- https://plugins.trac.wordpress.org/browser/redux-framework/trunk/redux-core/inc/fields/media/class-redux-media.php#L337
- https://plugins.trac.wordpress.org/changeset/3688279/redux-framework/trunk/redux-core/inc/fields/media/class-redux-media.php
- https://plugins.trac.wordpress.org/changeset?reponame=&new=3688279%40redux-framework%2Ftags%2F4.5.14&old=3582185%40redux-framework%2Ftags%2F4.5.13
- https://www.wordfence.com/threat-intel/vulnerabilities/id/ca5b1ff6-19c5-4384-ae63-faf1f40122e7?source=cve
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