SourceCodester Sales Tracker Management System manage_client.php sql injection

Vulnerability

An SQL injection vulnerability exists in SourceCodester Sales Tracker Management System version 1.0. The flaw resides in the file admin/clients/manage_client.php and is triggered by manipulating the id argument. No authentication or special configuration is required to reach the vulnerable code path. [1] reports that the /admin/clients/manage_client.php endpoint fails to sanitize user-supplied input for the id parameter before incorporating it into SQL queries.

Exploitation

An attacker can exploit this vulnerability remotely without authentication by sending a specially crafted HTTP request to the vulnerable endpoint. The attack involves injecting SQL commands into the id parameter. [1] provides a proof-of-concept payload demonstrating the injection, indicating that the exploit requires only network access to the vulnerable sales tracker management system.

Impact

Successful exploitation allows an attacker to execute arbitrary SQL commands against the backend database. This can lead to unauthorized viewing, modification, or deletion of sensitive data stored in the application's database, including sales records, client information, and potentially administrative credentials. The vulnerability is rated critical due to the high impact on confidentiality, integrity, and availability of the data.

Mitigation

As of publication, no official patch has been released by SourceCodester for Sales Tracker Management System 1.0. The vulnerability is publicly disclosed and a proof-of-concept exists [1]. Users should apply input validation and parameterized queries to the id parameter in admin/clients/manage_client.php as an immediate workaround. Affected users should monitor for vendor updates or consider migrating to an alternative solution if a patch is not provided.