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...

Improper Authorization

Craft CMS is vulnerable to Improper Authorization. The vulnerability is due to insufficient authorization checks after author reassignment in EntriesController::actionSaveEntry, where attacker-controlled author parameters are applied without revalidating permissions, allowing low-privileged users...

EUVD-2026-41213

Craft CMS: Potential authenticated Remote Code Execution via referrer redirect...

GHSA-F74W-488G-8X5R Craft CMS: Potential authenticated Remote Code Execution via referrer redirect

Requirements: Control panel access Permissions to edit an entry Details Control panel users with the ability to edit entries can execute unsandboxed Twig code via the HTTP Referrer header. The issue happens when a user is saving entries. Strings for a signed redirect URL are being compiled as a...

Craft CMS: Potential authenticated Remote Code Execution via referrer redirect

Requirements: Control panel access Permissions to edit an entry Details Control panel users with the ability to edit entries can execute unsandboxed Twig code via the HTTP Referrer header. The issue happens when a user is saving entries. Strings for a signed redirect URL are being compiled as a...

EUVD-2026-41153

Craft CMS: Stored XSS via Structure entry title in table view...

Craft CMS: Sensitive File Disclosure / Server-Side File Read

The dataUrl Twig function is included in Craft’s Twig sandbox allowlist, allowing any control panel user granted the utility:system-messages permission to embed a file-reading payload into system email templates. When those emails are sent, the server reads the target file and returns its content...

Information Exposure

Overview craftcms/cms is a content management system. Affected versions of this package are vulnerable to Information Exposure via the dataUrl function in Twig templates when a control panel user with the utility:system-messages permission embeds a file-reading payload into system email templates...

GHSA-287W-MXQ6-X2CP Craft CMS: Sensitive File Disclosure / Server-Side File Read

The dataUrl Twig function is included in Craft’s Twig sandbox allowlist, allowing any control panel user granted the utility:system-messages permission to embed a file-reading payload into system email templates. When those emails are sent, the server reads the target file and returns its content...

EUVD-2026-41209

Craft CMS: DOM XSS via GitHub issue title in CraftSupport widget...

Cross-site Scripting (XSS)

Overview craftcms/cms is a content management system. Affected versions of this package are vulnerable to Cross-site Scripting XSS via the CraftSupportWidget.js process. An attacker can execute arbitrary JavaScript code in the admin's control panel session by crafting a malicious GitHub issue tit...

GHSA-24X4-J6X9-RFW5 Craft CMS: DOM XSS via GitHub issue title in CraftSupport widget

Summary An attacker with only a GitHub account can plant a JavaScript payload in a craftcms/cms issue title. When a Craft admin uses the CraftSupport widget’s "Give feedback" screen and types a search term that returns the poisoned issue, the payload executes in the admin’s control panel session...

Missing Authorization

Overview craftcms/cms is a content management system. Affected versions of this package are vulnerable to Missing Authorization in the assets/preview-thumb endpoint when a user with Control Panel access but without asset-view permission requests a preview for a private asset. An attacker can obta...

Duplicate Advisory: Craft CMS: Missing authorization check allows non-admin control panel users access to user registration metrics

Duplicate Advisory This advisory has been withdrawn because it is a duplicate of GHSA-rvmm-v933-jgxq. This link is maintained to preserve external references. Original Description A flaw has been found in Craft CMS up to 4.18.0.1. Affected by this vulnerability is the function actionGetNewUsersDa...

GHSA-RMJ4-M9CP-MP9V Duplicate Advisory: Craft CMS: Missing authorization check allows non-admin control panel users access to user registration metrics

Duplicate Advisory This advisory has been withdrawn because it is a duplicate of GHSA-rvmm-v933-jgxq. This link is maintained to preserve external references. Original Description A flaw has been found in Craft CMS up to 4.18.0.1. Affected by this vulnerability is the function actionGetNewUsersDa...

Duplicate Advisory: Craft CMS: Missing authorization check allows non-admin control panel users to reorder Global Sets

Duplicate Advisory This advisory has been withdrawn because it is a duplicate of GHSA-9p7c-v5x3-rfx8. This link is maintained to preserve external references. Original Description A vulnerability was detected in Craft CMS up to 4.18.0.1. Affected is the function actionReorderSets of the file...

CVE-2026-14793

A vulnerability was detected in Craft CMS up to 4.18.0.1. Affected is the function actionReorderSets of the file src/controllers/GlobalsController.php of the component reorder-sets Endpoint. The manipulation results in authorization bypass. The attack can be executed remotely. Upgrading to versio...

CVE-2026-14794

A flaw has been found in Craft CMS up to 4.18.0.1. Affected by this vulnerability is the function actionGetNewUsersData of the file src/controllers/ChartsController.php of the component Charts Endpoint. This manipulation of the argument userGroupId causes improper authorization. The attack is...

CVE-2026-14794

Craft CMS vulnerability CVE-2026-14794 affects the Charts Endpoint (ChartsController.php, actionGetNewUsersData). The issue arises from input manipulation of userGroupId causing improper authorization, enabling a remote attack. Affected versions are Craft CMS up to 4.18.0.1; a fix is available in...