CVE-2026-0700 identifies a SQL injection vulnerability in the code-projects Intern Membership Management System version 1.0, specifically within the /intern/admin/check_admin.php file. The vulnerability arises from improper sanitization or validation of the Username parameter, allowing an attacker to inject malicious SQL code remotely. This can lead to unauthorized access to the backend database, enabling attackers to read, modify, or delete sensitive membership data. The vulnerability requires no authentication or user interaction, increasing its exploitability. The CVSS 4.0 score of 6.9 reflects a medium severity, considering the attack vector is network-based, with low complexity and no privileges required. Although no active exploits have been reported, the public disclosure of the exploit details elevates the risk of future attacks. The vulnerability compromises confidentiality, integrity, and availability of the affected system. The lack of available patches necessitates immediate mitigation efforts by affected organizations. The Intern Membership Management System is typically used by organizations to manage member information, making the data potentially sensitive and valuable to attackers. The vulnerability could be leveraged for data exfiltration, unauthorized administrative access, or further lateral movement within a compromised network.

For European organizations, exploitation of CVE-2026-0700 could result in significant data breaches involving personal and membership information, leading to regulatory non-compliance under GDPR. The integrity of membership records could be compromised, causing operational disruptions and loss of trust. Attackers might gain unauthorized administrative access or manipulate membership data, potentially impacting business processes and decision-making. Availability could also be affected if attackers execute destructive SQL commands. The public disclosure of the exploit increases the likelihood of targeted attacks, especially against organizations relying on this system without adequate protections. The impact is heightened for organizations in sectors such as education, non-profits, or associations that commonly use membership management systems. Additionally, reputational damage and potential financial penalties could arise from failure to secure sensitive data. The medium severity rating suggests a moderate but actionable risk that should be addressed promptly to prevent exploitation.

Organizations should immediately conduct a thorough code audit of the /intern/admin/check_admin.php file to identify and remediate the SQL injection vulnerability by implementing proper input validation and parameterized queries or prepared statements. In the absence of an official patch, deploying a Web Application Firewall (WAF) configured to detect and block SQL injection attempts targeting the Username parameter is critical. Regularly monitor database logs and application logs for suspicious queries or anomalies indicative of exploitation attempts. Restrict database user permissions to the minimum necessary to limit the impact of potential injection attacks. Conduct penetration testing focused on injection flaws to verify the effectiveness of mitigations. Educate developers and administrators about secure coding practices to prevent similar vulnerabilities. If feasible, consider migrating to updated or alternative membership management solutions with active security support. Maintain up-to-date backups of membership data to enable recovery in case of data corruption or loss. Finally, implement network segmentation to isolate the membership management system from critical infrastructure to reduce lateral movement risk.