CVE-2026-5410 json
Redux Framework <= 4.5.13 - Authenticated (Subscriber+) Stored Cross-Site Scripting via Spinner Field Input
published last mo. modified last mo. also EUVD-2026-83561
- cvss
- 6.4
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.4%
- EPSS 0.4% chance of exploitation in 30 days, percentile 31%
- public exploits
- 0
- none known
Summary
The Redux Framework plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the spinner field in versions up to, and including, 4.5.13 This is due to insufficient input sanitization and output escaping. In the user_meta_save() function scalar values bypass the sanitization logic that only processes arrays, allowing the spinner field value to be stored in user meta without proper sanitization. Later, at line 56 of class-redux-spinner.php in the render() function, this value is rendered in an unquoted HTML attribute without escaping via '$data_string .= ' data-val=' . $this->value;'. 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.
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Check with FencerCISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- partial
- Assessed
- last mo.
Exploit prediction
0.38% chance of exploitation in the next 30 days, higher than 31% of all scored CVEs (FIRST EPSS, 2026-11-11).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 6.4 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N |
Affected products
- davidanderson Redux Framework
Classification
- Weakness
-
- CWE-79 Improper Neutralization of Input During Web Page Generation
- Technology feeds
References
- wordfence.com /threat-intel/vulnerabilities/id/116c57c2-6257-40b3-a838-194f8959be16?source=cve
- plugins.trac.wordpress.org /browser/redux-framework/trunk/redux-core/inc/fields/spinner/class-redux-spinner.php#L56
- plugins.trac.wordpress.org /browser/redux-framework/tags/4.5.10/redux-core/inc/fields/spinner/class-redux-spinner.php#L56
- plugins.trac.wordpress.org /browser/redux-framework/trunk/redux-core/inc/extensions/users/class-redux-extension-users.php#L1018
- plugins.trac.wordpress.org /browser/redux-framework/tags/4.5.10/redux-core/inc/extensions/users/class-redux-extension-users.php#L1018
- plugins.trac.wordpress.org /changeset?reponame=&new=3688279%40redux-framework%2Ftags%2F4.5.14&old=3582185%40redux-framework%2Ftags%2F4.5.
- plugins.trac.wordpress.org /changeset/3688279/redux-framework/trunk/redux-core/inc/extensions/users/class-redux-extension-users.php
Sources
- CVE List CVE-2026-5410
- NVD CVE-2026-5410
Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.