CVE-2025-10687 is a SQL Injection vulnerability identified in SourceCodester Responsive E-Learning System version 1.0, specifically within the /admin/add_teacher.php file. The vulnerability arises from improper sanitization or validation of the 'Username' parameter, which can be manipulated by an attacker to inject malicious SQL code. This injection flaw allows an unauthenticated remote attacker to execute arbitrary SQL commands on the backend database without requiring any user interaction or privileges. The exploitability is high due to the lack of authentication and the network accessibility of the vulnerable endpoint. Successful exploitation could lead to unauthorized data access, modification, or deletion, potentially compromising the confidentiality, integrity, and availability of the e-learning system's data. The CVSS v4.0 score of 6.9 (medium severity) reflects the ease of exploitation (network vector, no privileges or user interaction required) but limited impact scope (limited confidentiality, integrity, and availability impact). No official patches or mitigations have been published yet, and while no known exploits are currently observed in the wild, public exploit code is available, increasing the risk of imminent attacks. Given the nature of the affected system—an e-learning platform used by educational institutions—this vulnerability could expose sensitive user data such as teacher and student information, course materials, and administrative records.

For European organizations, particularly educational institutions and e-learning service providers using SourceCodester Responsive E-Learning System 1.0, this vulnerability poses a significant risk. Exploitation could lead to unauthorized disclosure of personal data protected under GDPR, resulting in legal and financial repercussions. Integrity of educational content and administrative data could be compromised, disrupting learning processes and institutional operations. Availability impacts could arise if attackers manipulate or delete critical data, causing service outages. The medium severity rating suggests moderate but tangible risks, especially given the remote, unauthenticated attack vector. Institutions relying on this software without timely patching or mitigations may face increased exposure to data breaches, reputational damage, and compliance violations. Additionally, the presence of public exploit code lowers the barrier for attackers, including cybercriminals and hacktivists targeting educational entities in Europe.

1. Immediate mitigation should involve restricting access to the /admin/add_teacher.php endpoint via network-level controls such as IP whitelisting or VPN access to limit exposure. 2. Implement Web Application Firewall (WAF) rules to detect and block SQL injection patterns targeting the 'Username' parameter. 3. Conduct thorough input validation and parameterized queries or prepared statements in the source code to eliminate SQL injection vectors; this requires code review and secure coding practices. 4. Monitor logs for suspicious activities related to the vulnerable endpoint, including unusual query patterns or repeated failed attempts. 5. If possible, isolate the affected system from the internet or limit administrative functions to trusted internal networks until a vendor patch or official fix is available. 6. Educate administrative users on recognizing potential phishing or social engineering attempts that could leverage this vulnerability. 7. Plan for an urgent update or migration to a patched version once released by the vendor, and consider alternative e-learning platforms with stronger security postures if immediate remediation is not feasible.