CVE-2026-0578 identifies a SQL injection vulnerability in the code-projects Online Product Reservation System version 1.0. The vulnerability is located in the /handgunner-administrator/delete.php script, specifically in the handling of the ID parameter. An attacker can remotely manipulate this parameter without authentication or user interaction to inject malicious SQL commands. This injection can lead to unauthorized data access, modification, or deletion within the underlying database, impacting confidentiality, integrity, and availability. The vulnerability is exploitable over the network with low attack complexity and no privileges required, making it accessible to a wide range of attackers. Although no exploits have been reported in the wild yet, the public disclosure increases the likelihood of exploitation attempts. The CVSS 4.0 vector indicates no scope change, partial impact on confidentiality, integrity, and availability, and no user interaction needed. The absence of patches or vendor advisories means organizations must implement immediate mitigations. This vulnerability is critical for environments where the affected product manages sensitive customer or transactional data, such as online reservation systems in retail or hospitality sectors.

For European organizations, exploitation of this SQL injection vulnerability could lead to unauthorized access to sensitive customer data, including reservation details and personal information, resulting in data breaches and regulatory non-compliance under GDPR. Integrity of reservation records could be compromised, causing fraudulent bookings or cancellations, which may disrupt business operations and damage customer trust. Availability impacts could arise if attackers delete or corrupt database records, leading to service outages or degraded performance. The financial impact includes potential fines, remediation costs, and reputational damage. Organizations relying on this product or similar systems in sectors like retail, hospitality, and logistics are particularly at risk. The medium severity rating suggests a significant but not catastrophic impact, emphasizing the need for timely remediation to prevent escalation or chaining with other vulnerabilities.

Organizations should immediately audit their use of the code-projects Online Product Reservation System version 1.0 and isolate affected instances. Implement strict input validation and sanitization on the ID parameter in /handgunner-administrator/delete.php to prevent injection of malicious SQL code. Refactor the code to use parameterized queries or prepared statements, eliminating direct concatenation of user input into SQL commands. Restrict access to administrative endpoints through network segmentation, VPNs, or IP whitelisting to reduce exposure. Monitor logs for suspicious activity targeting the delete.php script and implement web application firewalls (WAFs) with SQL injection detection rules. If vendor patches become available, apply them promptly. Additionally, conduct regular security assessments and penetration testing focused on injection flaws. Educate developers on secure coding practices to prevent similar vulnerabilities in future releases.