CVE-2026-56382

Craft CMS (composer package craftcms/cms) versions >= 5.5.0 and <= 5.9.13 contain a remote code execution vulnerability in the FieldsController::actionRenderCardPreview() method, which passes the fieldLayoutConfig POST parameter directly to Fields::createLayout() without calling Component::cleanseConfig(). An authenticated admin user can inject Yii2 event handlers (e.g., 'on init' keys) via the fieldLayoutConfig parameter to execute arbitrary PHP code and disclose sensitive information (such as environment variables containing database credentials and CRAFT_SECURITY_KEY). The issue is fixed in version 5.9.14.

CVSS v3 7.2 HIGH

7.2^/10

CVSS v3 : HIGH

Vector :

Exploitability : 1.2 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required HIGH

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://github.com/craftcms/cms/security/advisories/GHSA-86vw-x4ww-x467
https://www.vulncheck.com/advisories/craft-cms-remote-code-execution-via-missing-config-sanitization-in-fieldscontroller
https://github.com/craftcms/cms/security/advisories/GHSA-86vw-x4ww-x467

Configurations

No configuration.

History

22 Jun 2026, 12:16

Type	Values Removed	Values Added
References	~~() https://github.com/craftcms/cms/security/advisories/GHSA-86vw-x4ww-x467 -~~	() https://github.com/craftcms/cms/security/advisories/GHSA-86vw-x4ww-x467 -

21 Jun 2026, 14:16

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-06-21 14:16

Updated : 2026-06-22 18:40

NVD link : CVE-2026-56382

Mitre link : CVE-2026-56382

CVE.ORG link : CVE-2026-56382

JSON object : View

Products Affected

No product.

CWE

CWE-94

Improper Control of Generation of Code ('Code Injection')

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