CVE-2026-44011-poc

CVE-2026-44011: Craft CMS authenticated RCE PoC This Python script adapts the attack described in the Craft CMS security advisory. An authenticated Craft user can reach a vulnerable field-layout configuration path and cause the server to execute commands. Scope and requirements Affected versions...

CVE-2026-86730 Craft CMS 5.0.0-RC1 before 5.10.12 Behavior Injection RCE

Craft CMS versions before 5.10.12 fail to properly cleanse string-typed field-layout elements, allowing authenticated control-panel users to inject Yii2 behavior attachments and event handlers. Attackers can post field-layout tab elements as JSON strings to bypass cleanse validation, then trigger...

CVE-2026-86730

Craft CMS versions from 5.0.0-RC1 before 5.10.12 are vulnerable to Remote Code Execution (RCE) due to improper cleansing of string-typed field-layout elements. An authenticated control-panel user can post field-layout tab elements as JSON strings to bypass cleanse validation, injecting Yii2 behav...

CVE-2026-86730 Craft CMS 5.0.0-RC1 before 5.10.12 Behavior Injection RCE

Craft CMS versions before 5.10.12 fail to properly cleanse string-typed field-layout elements, allowing authenticated control-panel users to inject Yii2 behavior attachments and event handlers. Attackers can post field-layout tab elements as JSON strings to bypass cleanse validation, then trigger...

EUVD-2026-72866

Craft CMS versions before 5.10.12 fail to properly cleanse string-typed field-layout elements, allowing authenticated control-panel users to inject Yii2 behavior attachments and event handlers. Attackers can post field-layout tab elements as JSON strings to bypass cleanse validation, then trigger...

CVE-2026-86730: Improper Control of Generation of Code

Craft CMS versions before 5.10.12 fail to properly cleanse string-typed field-layout elements, allowing authenticated control-panel users to inject Yii2 behavior attachments and event handlers. Attackers can post field-layout tab elements as JSON strings to bypass cleanse validation, then trigger...

PT-2026-87127

Craft CMS versions before 5.10.12 fail to properly cleanse string-typed field-layout elements, allowing authenticated control-panel users to inject Yii2 behavior attachments and event handlers. Attackers can post field-layout tab elements as JSON strings to bypass cleanse validation, then trigger...

Craft CMS: RCE via missing cleanseConfig in FieldsController::actionRenderCardPreview

The actionRenderCardPreview method in FieldsController passes the fieldLayoutConfig POST parameter directly to Fields::createLayout without calling Component::cleanseConfig. This allows Yii2 event handler injection via on eventName keys in the config array, leading to arbitrary code execution. Th...

GHSA-86VW-X4WW-X467 Craft CMS: RCE via missing cleanseConfig in FieldsController::actionRenderCardPreview

The actionRenderCardPreview method in FieldsController passes the fieldLayoutConfig POST parameter directly to Fields::createLayout without calling Component::cleanseConfig. This allows Yii2 event handler injection via on eventName keys in the config array, leading to arbitrary code execution. Th...

GHSA-PMM4-V8F6-4VPP Duplicate Advisory: Craft CMS: RCE via missing cleanseConfig in FieldsController::actionRenderCardPreview

Duplicate Advisory This advisory has been withdrawn because it is a duplicate of GHSA-86vw-x4ww-x467. This link is maintained to preserve external references. Original Description Craft CMS composer package craftcms/cms versions = 5.5.0 and = 5.9.13 contain a remote code execution vulnerability i...

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...

CVE-2026-56382 Craft CMS - Remote Code Execution via Missing Config Sanitization in FieldsController

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...

EUVD-2026-38176

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...

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...

CVE-2026-56382 Craft CMS - Remote Code Execution via Missing Config Sanitization in FieldsController

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...

CVE-2026-56382

Craft CMS (composer package craftcms/cms)

PT-2026-51230

Name of the Vulnerable Software and Affected Versions Craft CMS versions 5.5.0 through 5.9.13 Description An issue exists in the FieldsController::actionRenderCardPreview method where the fieldLayoutConfig POST parameter is passed directly to Fields::createLayout without being processed by...

CVE-2026-44011

Craft CMS is a content management system CMS. From 4.0.0 to before 4.17.12 and 5.9.18, Craft CMS which contains an input-handling flaw in a Yii object creation path that let any authenticated user inject malicious configuration and execute arbitrary commands on the server. The request-controlled...

CVE-2026-44011 Craft CMS: Potential authenticated Remote Code Execution via malicious attached Behavior

Craft CMS is a content management system CMS. From 4.0.0 to before 4.17.12 and 5.9.18, Craft CMS which contains an input-handling flaw in a Yii object creation path that let any authenticated user inject malicious configuration and execute arbitrary commands on the server. The request-controlled...

GHSA-QRGM-P9W5-RRFW Craft CMS has Potential Authenticated Remote Code Execution via Malicious Attached Behavior

We identified a vulnerability in the latest version of Craft CMS which contains an input-handling flaw in a Yii object creation path that let any authenticated user inject malicious configuration and execute arbitrary commands on the server. Yii’s dynamic object configuration, as implemented in...