Description
The Redux Framework plugin for WordPress is vulnerable to Stored Cross-Site Scripting via 'multi_media' Field Array Key in all versions due to insufficient input sanitization and output 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. The wp_kses_post sanitization applied at save time operates only on array leaf values, leaving array keys entirely unsanitized; the injected key is then rendered directly into an id="filelist-<KEY>" HTML attribute without esc_attr() in Redux_Multi_Media::render(), allowing attribute breakout.
References5
- plugins.trac.wordpress.org/browser/redux-framework/trunk/redux-…
- plugins.trac.wordpress.org/browser/redux-framework/trunk/redux-…
- plugins.trac.wordpress.org/browser/redux-framework/trunk/redux-…
- plugins.trac.wordpress.org/changeset/3779521/redux-framework/tr…
- www.wordfence.com/threat-intel/vulnerabilities/id/9b3d7dfc-d181…
Metrics
- CVSS 3.1
-
6.4
MEDIUM
Score source: CNA
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N - EPSS — exploit probability
- 0% percentile: 15 · as of 5 November 2026
- CWE
- CWE-79
Could this be exploited in your environment?
A patch closes the known hole. A penetration test shows what an attacker can still reach — with proof.