CVE-2026-32264 Craft CMS vulnerable to behavior injection RCE ElementIndexesController and FieldsController

High 8.6 Published Updated

Craft CMS administrators can achieve remote code execution via behavior injection in specific controllers when admin changes are allowed.

Exploited in the wild
Not known
Login needed
An administrator
Attackable
Over the internet
Victim action needed
Not needed
Fix
Available

What is CVE-2026-32264?

CVE-2026-32264 is a high-severity code injection vulnerability in Craftcms Craft Cms, published on 16 Mar 2026. An attacker needs administrator access to exploit it, with no action from the victim.

Official description

Craft CMS is a content management system (CMS). From version 4.0.0-RC1 to before version 4.17.5 and from version 5.0.0-RC1 to before version 5.9.11, there is a Behavior injection RCE vulnerability in ElementIndexesController and FieldsController. Craft control panel administrator permissions and allowAdminChanges must be enabled for this to work. This issue has been patched in versions 4.17.5 and 5.9.11.

Weakness: CWE-470

Which versions are affected by CVE-2026-32264?

4 open source packages ship an affected version, including craftcms/cms. It affects 1 product.

PackageAffectedFixed in
craftcms/cms PackagistFrom 4.0.0-RC14.17.5
craftcms/cms PackagistFrom 4.0.0-RC14.17.5
craftcms/cms PackagistFrom 5.0.0-RC15.9.11
craftcms/cms PackagistFrom 5.0.0-RC15.9.11

Products include Craftcms Craft Cms.

How do I fix CVE-2026-32264?

Upgrade craftcms/cms to a fixed version for your release line: 4.17.5 or 5.9.11.

Upgrade, and never evaluate templates, expressions or code built from user input. More about Code injection.

Is CVE-2026-32264 being exploited?

There is no known exploitation of CVE-2026-32264 in the wild and no public exploit code.

All Craftcms Craft Cms vulnerabilities

Sources

Also known as GHSA-4484-8v2f-5748.

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