CVE-2026-19825 is a SQL injection vulnerability affecting SourceCodester Simple Client Management System 1.0. The flaw exists in an unspecified function related to the save_service operation in /classes/Master.php, where manipulation of the ID parameter allows injection of SQL commands. This vulnerability can be exploited remotely without authentication and does not require user interaction. The CVSS 4.0 vector indicates network attack vector, low complexity, no privileges required, no user interaction, and low to limited impact on confidentiality, integrity, and availability. No official patch or vendor advisory is available to confirm remediation status.

Successful exploitation of this vulnerability could allow an attacker to execute arbitrary SQL commands on the backend database, potentially leading to unauthorized data access or modification. The impact is rated medium based on the CVSS score of 6.9, reflecting limited confidentiality, integrity, and availability impacts. There are no reports of active exploitation in the wild.

Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is released, users should consider implementing input validation and parameterized queries as a temporary mitigation to prevent SQL injection via the ID parameter in the save_service function.