The vulnerability manifests in three critical administrative actions handled by card.php and security.php. All three endpoints: 1) password change (action=confirm_password), 2) user disable (action=confirm_delete), and 3) encryption disable (action=disable_encrypt) are executed via simple GET requests without CSRF token validation. The PoC demonstrates these actions can be triggered through malicious URLs when an authenticated admin visits them, confirming the absence of CSRF protections. The file paths and parameter patterns match the vulnerability description and exploit documentation.