CVE-2026-104638A security vulnerability has been detected in onetwothreeneth HospitalManagementSystem up to 9ef91ed6007314b6473110ed699dff76d158f61d. The impacted element is an unknown function of the file php/sessions.php. The manipulation of the argument ID leads to improper authentication. Remote exploitation of the attack is possible. The exploit has been disclosed publicly and may be used. This product follows a rolling release approach for continuous delivery, so version details for affected or updated releases are not provided. The project was informed of the problem early through an issue report but has not responded yet.