EUVD-2025-21404

Comprehensive Technical Analysis of EUVD-2025-21404

1. Vulnerability Assessment and Severity Evaluation

The vulnerability described in EUVD-2025-21404 pertains to a SQL Injection flaw in the WeGIA web manager, specifically in versions prior to 3.4.5. This vulnerability is located in the endpoint /WeGIA/html/socio/sistema/processa_deletar_socio.php, affecting the id_socio parameter. SQL Injection vulnerabilities are critical because they allow attackers to execute arbitrary SQL commands, potentially leading to unauthorized access, data manipulation, and system compromise.

The CVSS (Common Vulnerability Scoring System) base score of 10.0 indicates a critical severity level. The vector string CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H breaks down as follows:

• AV:N (Network): The vulnerability is exploitable over the network.
• AC:L (Low): The attack complexity is low, meaning it is relatively easy to exploit.
• AT:N (None): No authentication is required to exploit the vulnerability.
• PR:N (None): No privileges are required.
• UI:N (None): No user interaction is required.
• VC:H (High), VI:H (High), VA:H (High): The vulnerability has a high impact on confidentiality, integrity, and availability.
• SC:H (High), SI:H (High), SA:H (High): The scope change, scope integrity, and scope availability are all high.

2. Potential Attack Vectors and Exploitation Methods

Attackers can exploit this vulnerability by crafting malicious SQL queries and injecting them into the id_socio parameter. Potential attack vectors include:

• Data Exfiltration: Extracting sensitive information from the database.
• Data Manipulation: Altering or deleting data to disrupt operations.
• Unauthorized Access: Gaining administrative privileges or accessing restricted areas of the application.
• Denial of Service: Executing commands that overload the database, causing it to crash or become unresponsive.

Exploitation methods may involve:

• Automated Tools: Using automated SQL Injection tools to identify and exploit the vulnerability.
• Manual Exploitation: Crafting custom SQL queries to target specific data or functionalities.

3. Affected Systems and Software Versions

The vulnerability affects all versions of WeGIA prior to 3.4.5. Organizations using these versions are at risk and should prioritize updating to version 3.4.5 or later to mitigate the issue.

4. Recommended Mitigation Strategies

To mitigate the risk associated with this vulnerability, the following strategies are recommended:

• Update to Version 3.4.5: Immediately update to the patched version 3.4.5 or later.
• Input Validation: Implement robust input validation to ensure that only valid data is accepted.
• Parameterized Queries: Use parameterized queries or prepared statements to prevent SQL Injection.
• Web Application Firewalls (WAF): Deploy WAFs to detect and block malicious SQL Injection attempts.
• Regular Audits: Conduct regular security audits and vulnerability assessments to identify and address similar issues.

5. Impact on European Cybersecurity Landscape

The vulnerability in WeGIA, which is focused on the Portuguese language and charitable institutions, highlights the importance of securing open-source software used by non-profit organizations. Given the critical nature of the data handled by such institutions, a breach could have significant implications, including financial loss, reputational damage, and legal consequences. This underscores the need for continuous monitoring and timely updates to ensure the security of open-source projects.

6. Technical Details for Security Professionals

For security professionals, the following technical details are pertinent:

• Vulnerable Endpoint: /WeGIA/html/socio/sistema/processa_deletar_socio.php
• Vulnerable Parameter: id_socio
• Exploitation Example: A malicious SQL query injected into the id_socio parameter could look like:

  id_socio=1; DROP TABLE users;
  

• Detection: Monitoring for unusual database queries or access patterns can help detect potential exploitation attempts.
• Patch Details: The patch in version 3.4.5 likely includes input sanitization and the use of parameterized queries to prevent SQL Injection.

Conclusion

The SQL Injection vulnerability in WeGIA versions prior to 3.4.5 is a critical issue that requires immediate attention. Organizations should prioritize updating to the patched version and implement additional security measures to protect against similar threats. The European cybersecurity landscape must continue to emphasize the importance of securing open-source software, especially in sectors handling sensitive data.

References

• GitHub Security Advisory
• ENISA ID Product
• ENISA ID Vendor