Mardi 22 septembre 2026

craftcms cms

Craft CMS 4.8.0 through 4.18.5 and 5.0.0 through 5.10.12 sign an authenticated user's attacker-controlled license-shun cookie with the same key and format used to validate signed redirect parameters, because the HMAC signature is not bound to its purpose (Yii's cookieValidationKey is derived from the same Craft securityKey used for signed request parameters). An authenticated, non-administrator user (Control Panel access is not required) can set the cookie via the license-shun endpoint and transplant the signed envelope into the redirect parameter; on a successful login, Craft validates the signature and renders the authenticated bytes as an unsandboxed Twig template, where Twig's map filter accepts a string callback and allows PHP system() to execute arbitrary operating-system commands as the web-server user. Exploitation requires an account using password authentication without active 2FA, the default request configuration, and availability of PHP system(). The issue is fixed in 4.18.6 and 5.10.13.

Incorrect privilege assignment in the admin user-management component of Webkul Bagisto 2.4.9 allows an authenticated backend user holding only the settings.users.edit permission to escalate to full administrator. The user-update endpoint (route admin.settings.users.update, UserController::update()) does not verify that the actor is permitted to grant the requested role, does not prevent a user from changing their own role, and does not restrict assignment to roles whose permission set is a subset of the actor's own. By submitting a request that sets role_id to the Administrator role for their own account, a low-privileged administrator gains every admin-panel capability, including store configuration, payment gateway credentials, and customer PII.