Jan Linhart

The GrapesJS Builder allows the upload of arbitrary files due to a lack of file type restrictions. If the media folder is not configured to prevent file execution, this could lead to remote code execution.

A user with limited privileges can bypass restrictions related to Composer and install or remove packages. This can occur even if the platform's update settings have Composer-based updates disabled. This allows a low-privileged user to potentially install malicious code and escalate their privileges on the system.