CVE-2026-5399 | The Redux Framework plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the Slider field in User Profile settings in versions up to and including 4.5.13.1. This is due to insufficient input sanitization in the user_meta_save() function (which only sanitizes array values, not scalar values) and improper output escaping in the Redux_Slider::render() method, which outputs slider values into unquoted HTML attributes. The vulnerability also exploi
The Redux Framework plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the Slider field in User Profile settings in versions up to and including 4.5.13.1. This is due to insufficient input sanitization in the user_meta_save() function (which only sanitizes array values, not scalar values) and improper output escaping in the Redux_Slider::render() method, which outputs slider values into unquoted HTML attributes. The vulnerability also exploits the fact that the clean_default() method only casts values to numeric types when they are empty or out of bounds, allowing malicious strings like '1 tabindex=0 autofocus onfocus=alert(1) x=' to pass validation through PHP's loose type comparison. This makes it possible for authenticated attackers, with Subscriber-level access and above, to inject arbitrary web scripts into their user profile that will execute whenever an Administrator navigates to view the attacker's profile page.
- 🔗 www.wordfence.com/threat-intel/vulnerabilities/id/31c554cf-…
- 🔗 plugins.trac.wordpress.org/browser/redux-framework/trunk/redux-core/…
- 🔗 plugins.trac.wordpress.org/browser/redux-framework/tags/4.5.10/redux…
- 🔗 plugins.trac.wordpress.org/browser/redux-framework/trunk/redux-core/…
- 🔗 plugins.trac.wordpress.org/browser/redux-framework/tags/4.5.10/redux…
- 🔗 github.com/reduxframework/redux-framework/pull/4112/…
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📊 Historien-Charts — Criticals-Trend · Vendors · EPSS-Verteilung
| Tier | 2026-09-02 | 2026-09-20 |
|---|---|---|
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| ≥50 % | 0 | 1477 |
| ≥10 % | 0 | 0 |
| <10 % | 300 | 0 |
CVE-2026-5399 | The Redux Framework plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the Slider field in User Profile settings in versions up to and including 4.5.13.1. This is due to insufficient input sanitization in the user_meta_save() function (which only sanitizes array values, not scalar values) and improper output escaping in the Redux_Slider::render() method, which outputs slider values into unquoted HTML attributes. The vulnerability also exploi
The Redux Framework plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the Slider field in User Profile settings in versions up to and including 4.5.13.1. This is due to insufficient input sanitization in the user_meta_sa