CVE-2026-5400Redux Framework <= 4.5.13 - Authenticated (Subscriber+) Cross-Site Scripting via User Input
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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.
- CVSS
- 6.4 MEDIUM (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N
- Weakness (CWE)
- CWE-79
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- Wordfence
- NVD analysis
- Deferred
- Record last updated
- Sep 19, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
davidanderson Redux Framework davidanderson:redux_framework (from the name) | through 4.5.13 | CNA record |
References
- https://www.wordfence.com/threat-intel/vulnerabilities/id/ca5b1ff6-19c5-4384-ae63-faf1f40122e7?source=cve
- 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/tags/4.5.10/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/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/tags/4.5.10/redux-core/inc/extensions/users/class-redux-extension-users.php#L1034
- https://github.com/reduxframework/redux-framework/pull/4112/changes
- https://plugins.trac.wordpress.org/changeset?reponame=&new=3688279%40redux-framework%2Ftags%2F4.5.14&old=3582185%40redux-framework%2Ftags%2F4.5.13
- https://plugins.trac.wordpress.org/changeset/3688279/redux-framework/trunk/redux-core/inc/fields/media/class-redux-media.php
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.