CVE-2025-13253 identifies a SQL injection vulnerability in the Advanced Library Management System version 1.0 developed by projectworlds. The vulnerability resides in the /add_librarian.php script, where the Username parameter is improperly sanitized, allowing an attacker to inject malicious SQL code. This injection flaw can be exploited remotely without authentication or user interaction, enabling attackers to manipulate backend database queries. Potential impacts include unauthorized data retrieval, modification, or deletion, which compromises the confidentiality, integrity, and availability of the library management system's data. The CVSS 4.0 vector indicates network attack vector (AV:N), low attack complexity (AC:L), no privileges required (PR:L - low privileges), no user interaction (UI:N), and low impact on confidentiality, integrity, and availability (VC:L, VI:L, VA:L). Although no known exploits are currently active in the wild, the public disclosure increases the likelihood of exploitation attempts. The vulnerability affects only version 1.0 of the product, and no official patches have been linked yet. The lack of secure coding practices around input validation and parameterized queries in this component is the root cause. This vulnerability is particularly critical in environments where sensitive user or institutional data is stored and managed, such as academic and public libraries.

For European organizations, exploitation of this vulnerability could lead to unauthorized access to sensitive library user information, including personal data and borrowing records, potentially violating GDPR and other data protection regulations. Integrity of data could be compromised, allowing attackers to alter records or inject malicious content, disrupting library operations. Availability may also be affected if attackers execute destructive SQL commands or cause database corruption. The remote and unauthenticated nature of the attack increases the risk of widespread exploitation, especially in institutions with limited cybersecurity resources. Public and academic libraries in Europe, which often rely on third-party management systems like projectworlds Advanced Library Management System, may face operational disruptions and reputational damage. Additionally, the exposure of personal data could lead to legal penalties under European data protection laws. The medium severity rating suggests moderate impact but ease of exploitation warrants prompt attention.

Organizations should immediately audit their use of projectworlds Advanced Library Management System version 1.0 and isolate affected systems. Since no official patches are currently available, implement input validation and sanitization on the Username parameter in /add_librarian.php to prevent SQL injection. Employ parameterized queries or prepared statements in the application code to eliminate direct SQL concatenation. Restrict database user permissions to the minimum necessary to limit the impact of any injection. Monitor logs for unusual database queries or failed login attempts indicative of exploitation attempts. Consider deploying web application firewalls (WAFs) with SQL injection detection rules as a temporary protective measure. Conduct security awareness training for administrators to recognize signs of compromise. Plan for an upgrade to a patched or more secure version of the software once available. Finally, ensure compliance with GDPR by reviewing data access and breach notification procedures in case of an incident.