Redux Framework < 4.5.14 - Subscriber+ Stored XSS via Media Field Filter Values

Description

The plugin is vulnerable to Stored Cross-Site Scripting via Media field filter values, 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.