A local privilege escalation vulnerability exists in the Foxit PDF Reader/Editor Update Service. During plugin installation, incorrect file system permissions are assigned to resources used by the update service. A local attacker with low privileges could modify or replace these resources, which are later executed by the service, resulting in execution of arbitrary code with SYSTEM privileges.
In Foxit PDF Reader before 2024.1 and PDF Editor before 2024.1, code execution via JavaScript could occur because of an unoptimized prompt message for users to review parameters of commands.