Primakon Pi Portal 1.0.18 API endpoints fail to enforce sufficient authorization checks when processing requests. Specifically, a standard user can exploit this flaw by sending direct HTTP requests to administrative endpoints, bypassing the UI restrictions. This allows the attacker to manipulate data outside their assigned scope, including: Unauthorized Account modification, modifying/deleting arbitrary user accounts and changing passwords by sending a direct request to the user management API endpoint; Confidential Data Access, accessing and downloading sensitive organizational documents via a direct request to the document retrieval API; Privilege escalation, This vulnerability can lead to complete compromise of data integrity and confidentiality, and Privilege Escalation by manipulating core system functions.