The Simple Laundry System 1.0 from code-projects contains an SQL injection vulnerability in the /modify.php file's Parameter Handler component. Specifically, the firstName parameter is improperly sanitized, allowing an attacker to inject SQL commands remotely. This vulnerability has a CVSS 4.0 base score of 6.9, indicating medium severity with network attack vector, low complexity, no privileges or user interaction required, and limited confidentiality, integrity, and availability impacts. The vulnerability is publicly known and an exploit has been published, but no official patch or fix has been provided by the vendor to 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, modification, or deletion, impacting the confidentiality, integrity, and availability of the system's data. However, the impact is rated medium due to limited scope and partial impact on security properties.

Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is available, it is recommended to implement input validation and parameterized queries on the firstName parameter in /modify.php to mitigate SQL injection risks. Monitor for updates from the vendor regarding patches or official mitigations.