CVE-2026-32593 Winter: SQL Injection in Backend Filter Widget numberrange Scope via numbersFromAjax
Authenticated backend users can inject SQL via AJAX filters in specific plugin configurations, allowing arbitrary database reads.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2026-32593?
CVE-2026-32593 is a medium-severity SQL injection vulnerability in wintercms winter, published on 26 Aug 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
Winter CMS is a content management system built on the Laravel PHP framework. In versions up to and including 1.2.12, the backend Filter widget is vulnerable to SQL injection through the numberrange scope type when that scope is configured with a conditions key, allowing an authenticated backend user to inject arbitrary SQL. The scope's filter values are interpolated into the conditions statement without parameter binding, so a user with access to a list view whose filter uses this scope and configuration can supply crafted input through the filter's AJAX handler and read arbitrary database contents. No built-in Winter CMS backend views use this scope type and configuration combination, so exploitation requires a third-party plugin to have registered a numberrange filter scope with a conditions key, and a vanilla installation without such plugins is not affected. This issue is fixed in version 1.2.13.
Weakness: CWE-89
Which versions are affected by CVE-2026-32593?
2 open source packages ship an affected version, including winter/wn-backend-module.
| Package | Affected | Fixed in |
|---|---|---|
winter/wn-backend-module Packagist | All versions | 1.2.13 |
winter/wn-backend-module Packagist | All versions | 1.2.13 |
How do I fix CVE-2026-32593?
Upgrade winter/wn-backend-module to 1.2.13 or later.
Use parameterised queries everywhere and never build SQL by joining strings. Upgrade affected software first; a web application firewall only buys time. More about SQL injection.
Is CVE-2026-32593 being exploited?
There is no known exploitation of CVE-2026-32593 in the wild and no public exploit code.
Sources
Also known as GHSA-m7jc-g4rc-jmvh.