CVE-2025-11052 is a SQL Injection vulnerability identified in the kidaze CourseSelectionSystem, specifically affecting versions 1.0 and the 5.php variant. The vulnerability resides in an unknown function within the file /Profilers/PriProfile/COUNT3s5.php, where manipulation of the 'csslc' argument allows an attacker to inject malicious SQL commands. This flaw can be exploited remotely without requiring any authentication or user interaction, making it particularly dangerous. The vulnerability impacts the confidentiality, integrity, and availability of the underlying database by allowing unauthorized access, data leakage, or data manipulation. The CVSS 4.0 base score is 6.9, indicating a medium severity level. The vector details highlight that the attack can be performed over the network (AV:N), requires low attack complexity (AC:L), no privileges (PR:N), no user interaction (UI:N), and affects confidentiality, integrity, and availability to a low extent (VC:L, VI:L, VA:L). The scope remains unchanged (S:U). Although no public exploits are currently known in the wild, the exploit code has been publicly released, increasing the risk of exploitation. The lack of available patches or mitigation links suggests that affected organizations must proactively implement defensive measures. Given the nature of the vulnerability, attackers could extract sensitive student data, alter course selections, or disrupt the course selection process, potentially impacting academic operations and privacy compliance.

For European organizations, particularly educational institutions using the kidaze CourseSelectionSystem, this vulnerability poses a significant risk. Exploitation could lead to unauthorized disclosure of personal student information, violating GDPR and other data protection regulations, resulting in legal and financial penalties. Integrity breaches could allow attackers to modify course enrollment data, causing administrative chaos and undermining trust in the institution's systems. Availability impacts could disrupt the course selection process during critical enrollment periods, affecting students and staff. Given the remote and unauthenticated nature of the exploit, threat actors could easily target multiple institutions, potentially leading to widespread disruption. The medium severity rating suggests that while the vulnerability is serious, it may not allow full system compromise but still requires urgent attention to prevent data breaches and operational impacts.

1. Immediate code review and sanitization of the 'csslc' parameter in /Profilers/PriProfile/COUNT3s5.php to ensure proper input validation and use of parameterized queries or prepared statements to prevent SQL injection. 2. Implement Web Application Firewalls (WAF) with custom rules to detect and block SQL injection attempts targeting the vulnerable parameter. 3. Conduct thorough security testing, including dynamic application security testing (DAST) and static code analysis, to identify and remediate similar vulnerabilities in the application. 4. Monitor logs for unusual database query patterns or failed injection attempts to detect early exploitation attempts. 5. Restrict database user permissions to the minimum necessary to limit the impact of any successful injection. 6. If possible, isolate the vulnerable component or disable the affected functionality temporarily until a patch or fix is applied. 7. Engage with the vendor or development team to obtain or develop a security patch and apply it promptly once available. 8. Educate development and IT teams on secure coding practices and the importance of input validation to prevent future vulnerabilities.