This vulnerability affects itsourcecode Fees Management System 1.0 and involves SQL injection via the ef_id argument in /receipt.php. An attacker can remotely manipulate this parameter to inject SQL commands, potentially compromising the backend database. The CVSS 4.0 base score is 5.3, indicating a medium severity with network attack vector, low complexity, no privileges required, and no user interaction needed. The vulnerability is publicly disclosed but no official fix or patch is currently available.

Successful exploitation of this SQL injection vulnerability could allow an 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 permissions. However, the CVSS vector indicates low confidentiality, integrity, and availability impacts, suggesting limited but non-negligible 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 input validation and parameterized queries as temporary mitigations. Monitoring for unusual database activity related to the ef_id parameter is advisable. No official vendor remediation or patch links are currently provided.