CVE-2025-6606 is a SQL Injection vulnerability identified in SourceCodester Best Salon Management System version 1.0, specifically in the /panel/add-services.php file. The vulnerability arises from improper sanitization or validation of the 'Type' parameter, which is directly used in SQL queries without adequate filtering or parameterization. This flaw allows an unauthenticated remote attacker to inject arbitrary SQL commands by manipulating the 'Type' argument, potentially leading to unauthorized data access, data modification, or even complete compromise of the underlying database. The vulnerability does not require user interaction and can be exploited remotely over the network. Although the CVSS 4.0 score is 5.3 (medium severity), the attack vector is network-based with low attack complexity and no privileges or user interaction required, which increases its risk profile. The vulnerability affects only version 1.0 of the product, and no official patches or mitigations have been published yet. There are no known exploits in the wild at the time of reporting, but public disclosure of the exploit details increases the likelihood of exploitation attempts. The affected system is a niche salon management software, which may be deployed in small to medium-sized businesses managing appointments, services, and customer data. The vulnerability primarily threatens the confidentiality and integrity of the database, with potential availability impacts if destructive SQL commands are executed.

For European organizations using SourceCodester Best Salon Management System 1.0, this vulnerability poses a significant risk to the confidentiality and integrity of sensitive customer and business data stored in the system's database. Exploitation could lead to unauthorized disclosure of personal data, including client information and business operations details, which may violate GDPR and other data protection regulations. Integrity compromise could result in fraudulent service records, financial manipulation, or disruption of business processes. Although the product is specialized and likely used by small to medium enterprises in the beauty and wellness sector, the impact on affected businesses could be severe, including reputational damage and regulatory penalties. The lack of authentication requirement and remote exploitability increases the risk of automated or opportunistic attacks, especially in environments with internet-facing management panels. Availability impacts are less likely but possible if attackers execute destructive SQL commands or cause database corruption, leading to service downtime and operational disruption.

Given the absence of official patches, European organizations should immediately implement compensating controls. First, restrict network access to the /panel/add-services.php endpoint by using firewall rules or web application firewalls (WAF) to allow only trusted IP addresses or internal network access. Second, implement input validation and sanitization at the web server or proxy level to block suspicious payloads targeting the 'Type' parameter, including common SQL injection patterns. Third, monitor web server and database logs for unusual query patterns or repeated failed attempts to exploit the parameter. Fourth, consider deploying database activity monitoring tools to detect and alert on anomalous SQL commands. Organizations should also plan to upgrade or patch the system as soon as a fix becomes available from the vendor or consider migrating to alternative salon management solutions with better security postures. Additionally, ensure regular backups of the database are maintained and tested for restoration to mitigate potential data loss. Finally, conduct security awareness training for staff to recognize and report suspicious activity related to the management system.