CVE-2026-5400

Redux Framework <= 4.5.13 - Authenticated (Subscriber+) Cross-Site Scripting via User Input

MEDIUM
6.4
CVSS Score
Published: September 19, 2026 at 07:43 AM UTC
Updated: September 21, 2026 at 01:45 PM UTC
1 product affected across 1 vendorRedux Framework

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Severity
MEDIUM6.4
Exploit prediction
EPSS 0.4%
SSVC
No known exploit

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

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

v ≤ 4.5.13

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

6.4MEDIUMWordfence
Vector?

Quick Info

StatusDEFERRED
CWE
CWE-79

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