CVE-2025-15410 is a SQL injection vulnerability identified in the Online Guitar Store 1.0 product by code-projects. The vulnerability resides in the /login.php endpoint, specifically in the L_email parameter, which is improperly sanitized. This allows an attacker to inject malicious SQL code remotely without requiring authentication or user interaction. The vulnerability could be exploited to manipulate backend database queries, potentially enabling unauthorized access to sensitive user data, bypassing authentication, or corrupting database contents. The CVSS 4.0 base score is 6.9, reflecting a medium severity level due to the vulnerability's remote exploitability and lack of required privileges or user interaction, but limited scope and impact on confidentiality, integrity, and availability. Although no exploits are currently reported in the wild, a public exploit exists, increasing the risk of exploitation. The lack of patches or vendor-provided fixes necessitates immediate mitigation efforts by affected organizations. The vulnerability is particularly relevant to organizations running this specific e-commerce software, which may be used by niche online music retailers or small businesses selling guitars and related products.

For European organizations using the Online Guitar Store 1.0 platform, this vulnerability could lead to unauthorized access to customer data, including login credentials and personal information, resulting in data breaches and regulatory non-compliance under GDPR. Attackers could manipulate or delete database records, disrupting business operations and damaging reputation. The remote, unauthenticated nature of the exploit increases the risk of automated attacks and widespread compromise. Small and medium-sized enterprises in the music retail sector, which may rely on this software, could face financial losses and operational downtime. Additionally, compromised systems could be leveraged as pivot points for further network intrusion. The impact is heightened in countries with strong e-commerce and digital music markets, where customer trust and data protection are critical.

Since no official patches are currently available, affected organizations should immediately implement input validation and sanitization on the L_email parameter to prevent SQL injection. Employing parameterized queries or prepared statements in the login.php code is essential to eliminate injection vectors. Web application firewalls (WAFs) should be configured to detect and block SQL injection attempts targeting this endpoint. Organizations should conduct thorough code reviews and penetration testing to identify and remediate similar vulnerabilities. Monitoring logs for suspicious login attempts and unusual database queries can help detect exploitation attempts early. If possible, migrating to updated or alternative e-commerce platforms with active security support is recommended. Finally, organizations must ensure regular backups and incident response plans are in place to mitigate potential data loss or service disruption.