CVE-2026-19825 is a SQL injection vulnerability in SourceCodester Simple Client Management System 1.0. The issue exists in an unspecified function within /classes/Master.php, specifically the save_service function, where the ID parameter is improperly sanitized. This flaw allows remote attackers to inject malicious SQL commands, potentially compromising the database. The vulnerability is publicly disclosed with exploit code available, but there is no evidence of active exploitation. No official fix or patch has been documented as of the publication date.

Successful exploitation of this vulnerability could allow an unauthenticated remote attacker to execute arbitrary SQL commands on the backend database. This may lead to unauthorized data access, data modification, or other database-related impacts depending on the database privileges of the application. The vulnerability has a medium severity rating (CVSS 6.9) indicating a significant but not critical risk.

Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is available, users should consider implementing web application firewall (WAF) rules to detect and block SQL injection attempts targeting the save_service function. Review and sanitize all user inputs, especially the ID parameter, as a temporary mitigation.