CVE-2025-10439 is a critical SQL Injection vulnerability (CWE-89) affecting the Yordam Informatics Yordam Library Automation System versions 21.5 and 21.6 prior to 21.7. This vulnerability arises due to improper neutralization of special elements used in SQL commands, allowing an attacker to inject malicious SQL code into the system's database queries. Exploitation does not require authentication or user interaction, and the attack vector is network-based, meaning an attacker can exploit this remotely over the network without any privileges. The CVSS 3.1 base score of 9.8 reflects the high severity, indicating that successful exploitation can lead to full compromise of confidentiality, integrity, and availability of the affected system. Potential impacts include unauthorized data disclosure, data manipulation or deletion, and potentially full system compromise if the database backend is critical to the application’s operation. The vulnerability affects versions 21.5 and 21.6 before 21.7, suggesting that the vendor has addressed the issue in version 21.7 or later. No known exploits are currently reported in the wild, but the critical nature and ease of exploitation make it a high-risk vulnerability that should be addressed promptly.

For European organizations using the Yordam Library Automation System, this vulnerability poses a significant risk to the confidentiality and integrity of library data, including potentially sensitive patron information, borrowing records, and internal catalog data. Exploitation could lead to unauthorized data access or manipulation, disrupting library operations and eroding trust. Given that library systems often integrate with other institutional IT infrastructure, a successful attack could serve as a pivot point for broader network compromise. The availability impact is also critical, as attackers could delete or corrupt data, causing service outages. This is particularly concerning for public and academic libraries in Europe, which serve large populations and rely heavily on uninterrupted access to digital resources. Additionally, compliance with European data protection regulations such as GDPR means that data breaches resulting from this vulnerability could lead to significant legal and financial penalties.

European organizations should immediately upgrade the Yordam Library Automation System to version 21.7 or later, where the vulnerability is patched. In the absence of an immediate upgrade, organizations should implement strict input validation and sanitization on all user inputs interacting with the database, employing parameterized queries or prepared statements to prevent injection. Network-level protections such as web application firewalls (WAFs) should be configured to detect and block SQL injection attempts targeting the affected system. Regular security audits and code reviews focusing on database interaction code can help identify and remediate similar issues proactively. Additionally, organizations should monitor logs for unusual database query patterns or errors indicative of injection attempts. Segmentation of the library system network from critical infrastructure can limit potential lateral movement if exploitation occurs. Finally, ensure that backups of critical data are maintained and tested for integrity to enable recovery in case of data corruption or deletion.