CVE-2026-5410 Redux Framework <= 4.5.13 - Authenticated (Subscriber+) Stored Cross-Site Scripting via Spinner Field Input
Authenticated attackers can inject arbitrary web scripts via the spinner field, leading to stored XSS execution on victim pages.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-5410?
CVE-2026-5410 is a medium-severity cross-site scripting vulnerability in davidanderson Redux Framework, published on 19 Sep 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
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.
Weakness: CWE-79
Which versions are affected by CVE-2026-5410?
How do I fix CVE-2026-5410?
No fix has been published for CVE-2026-5410 yet. Limit exposure of the affected software until one is available.
Escape output for the context it lands in and set a strict Content Security Policy. Upgrading the affected component is the real fix. More about Cross-site scripting.
Is CVE-2026-5410 being exploited?
There is no known exploitation of CVE-2026-5410 in the wild and no public exploit code.
Sources
Also known as GHSA-x3gq-9gj8-jmhv.