CVE-2026-85403 Details

A SQL injection vulnerability has been identified in the Doctor Appointment System version 1.0, specifically within the contactus.php file. This vulnerability arises from inadequate validation of the 'firstname' parameter, allowing attackers to inject malicious SQL queries. The exploitation of this flaw could lead to unauthorized access to the database, manipulation of data, and exposure of sensitive information. Notably, this vulnerability can be exploited remotely without requiring any form of authentication.

To address this vulnerability, it is recommended to implement prepared statements and parameter binding to prevent SQL injection. Additionally, input validation and filtering should be applied to ensure user input conforms to expected formats. Minimizing database user permissions and conducting regular security audits can also help enhance the application's security.