CVE-2025-39484 is an SQL Injection vulnerability classified under CWE-89, found in the Waituk Entrada software product, affecting versions up to 5.7.7. The vulnerability arises from improper neutralization of special characters in SQL commands, allowing attackers to inject arbitrary SQL code. The CVSS 3.1 score of 9.3 reflects a critical severity, with an attack vector that is network-based (AV:N), requiring no privileges (PR:N) or user interaction (UI:N), and impacting confidentiality with a high impact (C:H), but only low impact on availability (A:L) and no impact on integrity (I:N). The scope is changed (S:C), meaning the vulnerability can affect resources beyond the initially vulnerable component. This allows remote attackers to potentially extract sensitive data from the backend database without authentication. While no public exploits are currently known, the vulnerability's characteristics make it highly exploitable. The lack of available patches at the time of publication increases the urgency for organizations to implement interim mitigations such as input sanitization and web application firewalls. The vulnerability affects all deployments of Entrada up to version 5.7.7, but the exact affected versions are not fully enumerated. The vulnerability was reserved in April 2025 and published in January 2026, indicating a recent discovery and disclosure timeline.

For European organizations, this vulnerability poses a significant risk of unauthorized data disclosure, especially for entities handling sensitive or regulated data such as financial institutions, healthcare providers, and government agencies. The ability to execute SQL commands remotely without authentication can lead to exposure of confidential information, violating data protection regulations like GDPR. Although the integrity and availability impacts are low, the confidentiality breach alone can result in severe reputational damage, regulatory fines, and loss of customer trust. Organizations relying on Entrada for critical business functions may face operational disruptions if attackers leverage the vulnerability to extract data or cause partial service degradation. The vulnerability's network accessibility and lack of required privileges make it a prime target for automated scanning and exploitation attempts, increasing the threat landscape for European enterprises.

1. Monitor Waituk's official channels for patches addressing CVE-2025-39484 and apply them immediately upon release. 2. Implement strict input validation and sanitization on all user inputs interacting with SQL queries to prevent injection of malicious characters. 3. Employ parameterized queries or prepared statements in application code to separate SQL logic from data inputs. 4. Deploy Web Application Firewalls (WAFs) with updated rules to detect and block SQL Injection attempts targeting Entrada. 5. Conduct regular security assessments and code reviews focusing on database interaction points within Entrada deployments. 6. Restrict database user permissions to the minimum necessary to limit potential damage from successful injection attacks. 7. Monitor logs and network traffic for unusual query patterns or access attempts indicative of exploitation attempts. 8. Educate development and operations teams about secure coding practices related to SQL query construction. 9. Consider network segmentation to isolate critical Entrada instances from broader enterprise networks to reduce attack surface.