CVE-2025-53946 is a critical SQL Injection vulnerability affecting the open source web management software WeGIA, developed by LabRedesCefetRJ. WeGIA is primarily targeted at Portuguese-speaking charitable institutions and organizations. The vulnerability exists in versions prior to 3.4.5 within the 'id_funcionario' parameter of the '/html/saude/profile_paciente.php' endpoint. This parameter is improperly sanitized, allowing an attacker to inject malicious SQL commands. Exploiting this flaw enables unauthorized manipulation of backend SQL queries, potentially exposing sensitive database information such as table names and confidential data records. The vulnerability is classified under CWE-89 (Improper Neutralization of Special Elements used in an SQL Command), indicating that user input is not correctly filtered or escaped before being incorporated into SQL statements. The CVSS 4.0 base score is 9.4 (critical), reflecting the vulnerability's high impact and ease of exploitation. The 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 high impact on confidentiality, integrity, and availability (VC:H, VI:H, VA:H). The vulnerability was published on July 17, 2025, and fixed in version 3.4.5 of WeGIA. No known exploits have been reported in the wild yet, but the critical severity and straightforward exploitation path make it a significant risk for affected deployments. Organizations using WeGIA versions prior to 3.4.5 should urgently apply the patch to prevent potential data breaches and system compromise.

For European organizations, especially those operating charitable institutions or healthcare-related services using WeGIA, this vulnerability poses a severe risk. Exploitation could lead to unauthorized disclosure of sensitive personal and health data, violating GDPR and other data protection regulations, resulting in legal penalties and reputational damage. The integrity of patient profiles and institutional data could be compromised, potentially disrupting operations and trust. Availability impacts could arise if attackers manipulate or delete database records, causing service outages or data loss. Given WeGIA's focus on Portuguese language users, organizations in Portugal and Portuguese-speaking communities within Europe are particularly at risk. The critical severity and network-based exploitation mean attackers can remotely compromise systems without authentication or user interaction, increasing the threat surface. This vulnerability could also be leveraged as a foothold for further attacks within organizational networks, including lateral movement and privilege escalation.

1. Immediate upgrade to WeGIA version 3.4.5 or later is essential to remediate the vulnerability. 2. If upgrading is not immediately feasible, implement web application firewall (WAF) rules specifically designed to detect and block SQL injection attempts targeting the 'id_funcionario' parameter. 3. Conduct a thorough audit of all input validation and sanitization mechanisms within WeGIA deployments to ensure no other parameters are vulnerable. 4. Employ parameterized queries or prepared statements in the application code to prevent SQL injection. 5. Monitor database logs and application logs for unusual query patterns or errors indicative of injection attempts. 6. Restrict database user permissions to the minimum necessary to limit the impact of any successful injection. 7. Educate development and IT teams about secure coding practices and the importance of timely patching. 8. Perform regular vulnerability scanning and penetration testing focusing on injection flaws to proactively identify weaknesses.