Description
A time-based blind SQL Injection vulnerability exists in the ChurchCRM 5.13.0 and prior EditEventAttendees.php within the EN_tyid parameter. The parameter is directly inserted into an SQL query without proper sanitization, allowing attackers to inject malicious SQL commands. Please note that the vulnerability requires Administrator permissions. This flaw can potentially allow attackers to delay the response, indicating the presence of an SQL injection vulnerability. While it is a time-based blind injection, it can be exploited to gain insights into the underlying database, and with further exploitation, sensitive data could be retrieved.
EPSS Score:
0%
Comprehensive Technical Analysis of EUVD-2025-4727
1. Vulnerability Assessment and Severity Evaluation
The vulnerability EUVD-2025-4727 is a time-based blind SQL Injection flaw in the ChurchCRM software, specifically affecting versions 5.13.0 and prior. The vulnerability exists in the EditEventAttendees.php script within the EN_tyid parameter. This parameter is directly inserted into an SQL query without proper sanitization, allowing attackers to inject malicious SQL commands.
Severity Evaluation:
- Base Score: 9.3 (CVSS 4.0)
- Base Score Vector: 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 critical vulnerability due to the potential for significant impact on confidentiality, integrity, and availability. The attack complexity is low, and the attack vector is network-based, which increases the risk. However, the requirement for Administrator permissions mitigates the ease of exploitation.
2. Potential Attack Vectors and Exploitation Methods
Attack Vectors:
- Network-Based Attack: The vulnerability can be exploited remotely over the network.
- Time-Based Blind SQL Injection: Attackers can inject SQL commands that cause a delay in the response, indicating the presence of the vulnerability.
Exploitation Methods:
- SQL Injection: Attackers can craft SQL queries that manipulate the database, potentially extracting sensitive information or altering data.
- Delay-Based Techniques: By injecting commands that introduce delays, attackers can infer the structure and content of the database.
3. Affected Systems and Software Versions
Affected Software:
- ChurchCRM versions 5.13.0 and prior.
Specific Component:
EditEventAttendees.phpscript, particularly theEN_tyidparameter.
4. Recommended Mitigation Strategies
Immediate Mitigation:
- Patching: Upgrade to a version of ChurchCRM that addresses this vulnerability.
- Input Sanitization: Ensure 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.
Long-Term Mitigation:
- Regular Audits: Conduct regular security audits and code reviews to identify and fix similar vulnerabilities.
- Web Application Firewalls (WAF): Implement WAFs to detect and block SQL injection attempts.
- Least Privilege Principle: Ensure that database users have the minimum necessary permissions.
5. Impact on European Cybersecurity Landscape
The vulnerability in ChurchCRM, a widely used software in religious and non-profit organizations, poses a significant risk to data security and privacy. Given the sensitive nature of the data handled by such organizations, a successful exploitation could lead to data breaches, financial loss, and reputational damage. The European cybersecurity landscape must prioritize the security of open-source software and ensure timely patching and updates to mitigate such risks.
6. Technical Details for Security Professionals
Vulnerability Details:
- Type: Time-Based Blind SQL Injection
- Affected Parameter:
EN_tyidinEditEventAttendees.php - Exploitation: Injecting SQL commands that introduce delays to infer database structure and content.
Detection Methods:
- Log Analysis: Monitor database logs for unusual query patterns and delays.
- Intrusion Detection Systems (IDS): Implement IDS to detect and alert on suspicious SQL injection attempts.
Remediation Steps:
- Update Software: Ensure all instances of ChurchCRM are updated to the latest version.
- Code Review: Conduct a thorough code review to identify and fix similar vulnerabilities.
- Security Training: Provide training to developers on secure coding practices to prevent future vulnerabilities.
References:
By addressing this vulnerability promptly and implementing robust security measures, organizations can significantly reduce the risk of data breaches and ensure the integrity and confidentiality of their systems.