CVE-2025-30989 is a high-severity SQL Injection vulnerability (CWE-89) affecting the Renzo Tejada product 'Libro de Reclamaciones y Quejas' in versions up to 0.9. The vulnerability arises from improper neutralization of special elements in SQL commands, allowing an attacker with high privileges (PR:H) and no user interaction (UI:N) to inject malicious SQL code remotely (AV:N). The CVSS 3.1 base score is 7.6, reflecting a critical confidentiality impact (C:H), no integrity impact (I:N), and low availability impact (A:L). The scope is changed (S:C), indicating that exploitation can affect resources beyond the vulnerable component. Although no known exploits are currently in the wild and no patches have been published, the vulnerability poses a significant risk due to the potential for unauthorized data disclosure. The affected product is a complaint and claims management system, which likely stores sensitive personal and organizational data. The vulnerability requires attacker authentication but no user interaction, meaning an attacker must have some level of access credentials to exploit the flaw. The lack of patches and the presence of a high CVSS score suggest that organizations using this software should prioritize mitigation efforts. The vulnerability was reserved in March 2025 and published in June 2025, indicating recent discovery and disclosure.

For European organizations, the impact of this SQL Injection vulnerability could be substantial. 'Libro de Reclamaciones y Quejas' is a system designed to handle complaints and claims, which typically involves sensitive personal data, customer feedback, and possibly regulatory compliance information. Exploitation could lead to unauthorized disclosure of confidential data, violating GDPR and other data protection regulations, resulting in legal penalties and reputational damage. Although the vulnerability does not allow data modification or deletion, the confidentiality breach alone is critical. The requirement for attacker authentication limits the attack surface but does not eliminate risk, especially if credential theft or insider threats are possible. The low availability impact means service disruption is unlikely, but data leakage could undermine trust in complaint management processes. European organizations in sectors such as government, consumer services, and regulated industries that rely on this product could face compliance challenges and customer trust erosion if exploited.

Given the absence of official patches, European organizations should implement the following specific mitigations: 1) Conduct an immediate audit of user accounts and privileges to ensure that only necessary personnel have access to the 'Libro de Reclamaciones y Quejas' system, minimizing the risk of credential abuse. 2) Implement strict input validation and parameterized queries or prepared statements at the application level if possible, to neutralize SQL injection vectors. 3) Employ Web Application Firewalls (WAFs) with custom rules to detect and block SQL injection attempts targeting this application. 4) Monitor logs for unusual query patterns or failed login attempts that might indicate exploitation attempts. 5) Isolate the application in a segmented network zone with limited access to sensitive databases to reduce lateral movement. 6) Educate administrators and users about credential security to prevent unauthorized access. 7) Plan for rapid patch deployment once an official fix is released by the vendor. 8) Consider alternative complaint management solutions if remediation is not feasible in the short term.