CVE-2026-0701 identifies an SQL injection vulnerability in the code-projects Intern Membership Management System version 1.0, located in the /intern/admin/add_admin.php script. The vulnerability is triggered by manipulation of the 'Username' parameter, which is not properly sanitized before being incorporated into SQL queries. This flaw allows remote attackers to execute arbitrary SQL commands on the backend database without requiring authentication or user interaction, as indicated by the CVSS vector (AV:N/AC:L/AT:N/PR:H/UI:N). The presence of administrative privileges (PR:H) is required, which somewhat limits the attack surface to users with elevated rights, but the vulnerability still poses a significant risk. Exploitation could lead to unauthorized data disclosure, modification, or deletion, impacting confidentiality, integrity, and availability of the system. Although no exploits are currently observed in the wild, publicly available proof-of-concept code increases the likelihood of future attacks. The vulnerability does not involve scope changes or security controls bypass, but the partial impact on confidentiality, integrity, and availability justifies a medium severity rating. The lack of vendor patches or official remediation guidance necessitates immediate defensive actions by affected organizations.

For European organizations using the code-projects Intern Membership Management System 1.0, this vulnerability could lead to unauthorized access to sensitive membership data, manipulation of administrative accounts, and potential disruption of membership management services. The SQL injection could allow attackers with administrative privileges to escalate their control, extract confidential information, or corrupt data integrity. This risk is particularly critical for organizations handling personal data subject to GDPR, as breaches could result in regulatory penalties and reputational damage. The availability of proof-of-concept exploits increases the risk of targeted attacks. The impact is amplified in sectors relying heavily on membership systems, such as educational institutions, professional associations, and non-profits across Europe. The vulnerability could also serve as a pivot point for lateral movement within networks, increasing overall organizational risk.

1. Immediately restrict access to the /intern/admin/add_admin.php endpoint to trusted administrative users only, ideally via network segmentation or VPN. 2. Implement strict input validation and sanitization on the 'Username' parameter, ensuring that only allowed characters and formats are accepted. 3. Refactor the application code to use parameterized queries or prepared statements to prevent SQL injection. 4. Monitor database logs and application logs for unusual queries or failed login attempts that could indicate exploitation attempts. 5. Conduct a thorough security review of the entire membership management system to identify and remediate similar injection flaws. 6. If vendor patches become available, prioritize their deployment. 7. Educate administrative users on secure credential practices and the risks of privilege misuse. 8. Employ web application firewalls (WAF) with rules to detect and block SQL injection patterns targeting this application. 9. Regularly back up membership data and test restoration procedures to mitigate data loss risks.