EUVD-2025-4725

Comprehensive Technical Analysis of EUVD-2025-4725

1. Vulnerability Assessment and Severity Evaluation

The vulnerability EUVD-2025-4725 affects ChurchCRM 5.13.0 and prior versions, allowing an attacker to execute arbitrary SQL queries through a boolean-based blind SQL Injection vulnerability in the EditEventAttendees functionality. The EID parameter is directly concatenated into an SQL query without proper sanitization, making it susceptible to SQL injection attacks.

Severity Evaluation:

• Base Score: 9.3 (CVSS 4.0)
• Vector String: CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:H/SI:L/SA:H/AU:Y/R:U/V:C/RE:H/U:Red

The high base score indicates a severe vulnerability. Key factors contributing to the severity include:

• Attack Vector (AV:N): Network-based attack, meaning it can be exploited remotely.
• Attack Complexity (AC:L): Low complexity, indicating that the attack does not require specialized conditions.
• Privileges Required (PR:H): High privileges are required, meaning the attacker needs Administrator privileges.
• User Interaction (UI:N): No user interaction is required.
• Confidentiality (VC:H), Integrity (VI:H), and Availability (VA:H): High impact on all three CIA triad components.

2. Potential Attack Vectors and Exploitation Methods

Attack Vectors:

• Remote Exploitation: An attacker can exploit this vulnerability over the network.
• Administrator Privileges: The attacker must have Administrator privileges to exploit the vulnerability.

Exploitation Methods:

• SQL Injection: The attacker can inject malicious SQL code into the EID parameter, manipulating the SQL query to exfiltrate, modify, or delete data.
• Boolean-Based Blind SQL Injection: This method involves sending payloads that cause the application to return different results based on whether the injected condition is true or false.

3. Affected Systems and Software Versions

Affected Software:

• ChurchCRM versions 5.13.0 and prior.

Affected Systems:

• Any system running the vulnerable versions of ChurchCRM, particularly those with Administrator access.

4. Recommended Mitigation Strategies

Immediate Mitigation:

• Patching: Upgrade to a patched version of ChurchCRM that addresses this vulnerability.
• Input Sanitization: Ensure that all user inputs are properly sanitized and validated before being used in SQL queries.
• Parameterized Queries: Use parameterized queries or prepared statements to prevent SQL injection.
• Least Privilege: Implement the principle of least privilege to limit the number of users with Administrator access.

Long-Term Mitigation:

• Regular Audits: Conduct regular security audits and code reviews to identify and fix similar vulnerabilities.
• Security Training: Provide security training for developers to ensure they are aware of common vulnerabilities and best practices.
• Monitoring: Implement monitoring and logging to detect and respond to suspicious activities.

5. Impact on European Cybersecurity Landscape

The vulnerability poses a significant risk to organizations using ChurchCRM, particularly those in the European Union. Given the high base score and the potential for data exfiltration, modification, or deletion, this vulnerability could lead to severe data breaches and loss of sensitive information. Organizations must prioritize patching and implementing robust security measures to mitigate this risk.

6. Technical Details for Security Professionals

Vulnerability Details:

• Vulnerable Parameter: EID in the EditEventAttendees functionality.
• Exploitation: The EID parameter is directly concatenated into an SQL query without proper sanitization, allowing for SQL injection.

Detection and Response:

• Detection: Implement intrusion detection systems (IDS) and intrusion prevention systems (IPS) to detect and block SQL injection attempts.
• Response: Develop an incident response plan that includes steps for identifying, containing, and remediating SQL injection attacks.

References:

• NVD Entry: CVE-2025-1133
• GitHub Issue: ChurchCRM/CRM/issues/7252

Conclusion: EUVD-2025-4725 is a critical vulnerability that requires immediate attention from organizations using ChurchCRM. By implementing the recommended mitigation strategies and maintaining vigilant security practices, organizations can significantly reduce the risk associated with this vulnerability.