CVE-2026-1443 is a SQL injection vulnerability identified in the code-projects Online Music Site version 1.0, specifically within the /Administrator/PHP/AdminDeleteUser.php script. The vulnerability arises from improper sanitization of the 'ID' parameter, which is used to identify users for deletion. An attacker can remotely manipulate this parameter to inject arbitrary SQL commands into the backend database query. This injection occurs without requiring any authentication or user interaction, making it remotely exploitable over the network. The vulnerability impacts the confidentiality, integrity, and availability of the database by potentially allowing unauthorized data access, modification, or deletion. The CVSS 4.0 base score is 6.9, indicating a medium severity level, with the vector highlighting network attack vector, low complexity, no privileges or user interaction required, and limited impact on confidentiality, integrity, and availability. Although no known exploits are currently active in the wild, the public availability of exploit code increases the likelihood of exploitation attempts. The vulnerability affects only version 1.0 of the Online Music Site product, which is used to manage music-related content and user accounts. The administrative deletion functionality is a critical component, and exploitation could lead to unauthorized user account deletions or broader database compromise. The lack of patches or official fixes at the time of publication necessitates immediate mitigation steps by affected organizations.

For European organizations, the impact of this vulnerability can be significant, especially for those operating online music platforms or similar web applications using the affected software. Exploitation could lead to unauthorized access to sensitive user data, including personal information and account details, resulting in privacy violations and regulatory non-compliance under GDPR. The integrity of user accounts and content could be compromised through unauthorized deletions or modifications, disrupting service availability and damaging organizational reputation. Additionally, attackers could leverage the vulnerability as a foothold for further network intrusion or lateral movement. The remote and unauthenticated nature of the exploit increases the risk of widespread attacks, particularly if administrative interfaces are exposed to the internet without adequate protections. European companies in the entertainment and digital media sectors, which often handle large volumes of user data, may face operational disruptions and financial losses due to data breaches or service outages caused by this vulnerability.

To mitigate CVE-2026-1443, affected organizations should immediately audit and restrict access to the /Administrator/PHP/AdminDeleteUser.php endpoint, ensuring it is not publicly accessible and is protected by strong authentication and network controls such as VPNs or IP whitelisting. Input validation and parameter sanitization must be implemented or enhanced to prevent SQL injection, ideally using prepared statements or parameterized queries in the codebase. Organizations should monitor database logs and web server logs for unusual or suspicious activity related to user deletion requests. If possible, upgrade or patch the Online Music Site software once an official fix is released by the vendor. In the absence of patches, consider deploying Web Application Firewalls (WAFs) with custom rules to detect and block SQL injection attempts targeting the vulnerable parameter. Regular security assessments and penetration tests focusing on administrative interfaces should be conducted to identify and remediate similar vulnerabilities. Finally, ensure that backups of critical data are maintained and tested for integrity to enable recovery in case of data loss or corruption.