CVE-2005-4240 in VCD-db
Summary
by MITRE
SQL injection vulnerability in search.php in VCD-db 0.98 and earlier allows remote attackers to execute arbitrary SQL commands via the by parameter.
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Analysis
by VulDB Data Team • 12/27/2025
The vulnerability identified as CVE-2005-4240 represents a critical SQL injection flaw within the VCD-db 0.98 content management system, specifically affecting the search.php script. This vulnerability resides in the handling of user input through the by parameter, which is processed without adequate sanitization or validation mechanisms. The flaw enables remote attackers to inject malicious SQL code directly into the database query execution flow, potentially compromising the entire backend database infrastructure. The vulnerability affects all versions of VCD-db up to and including version 0.98, making it a significant concern for organizations relying on this legacy system.
The technical exploitation of this vulnerability occurs when an attacker submits malicious input through the by parameter in the search.php script. The application fails to properly escape or filter user-supplied data before incorporating it into SQL queries, creating a direct pathway for SQL injection attacks. This type of vulnerability falls under CWE-89, which specifically addresses SQL injection flaws in software applications. The flaw demonstrates poor input validation practices and inadequate database query construction methodologies that violate fundamental security principles for handling user input. Attackers can leverage this vulnerability to perform unauthorized database operations including data extraction, modification, or deletion, potentially leading to complete system compromise.
The operational impact of this vulnerability extends beyond simple data theft, as it provides attackers with the capability to execute arbitrary SQL commands on the underlying database server. This level of access can result in complete database compromise, allowing attackers to escalate privileges, extract sensitive information, modify or delete critical data, and potentially establish persistent backdoors within the system. The remote nature of the attack means that exploitation does not require physical access to the system, making it particularly dangerous for web-based applications. Organizations using vulnerable versions of VCD-db face significant risk of data breaches, service disruption, and potential compliance violations, especially in environments where sensitive information is stored.
Mitigation strategies for this vulnerability must address both immediate remediation and long-term security improvements. The primary solution involves implementing proper input validation and parameterized queries to prevent SQL injection attacks, which aligns with ATT&CK technique T1071.004 for application layer attacks. Organizations should upgrade to the latest version of VCD-db where this vulnerability has been patched, or implement proper input sanitization measures including the use of prepared statements and stored procedures. Additional defensive measures include implementing web application firewalls, conducting regular security assessments, and establishing proper database access controls. The vulnerability highlights the importance of following secure coding practices and demonstrates the critical need for regular security updates and vulnerability management processes within organizations relying on legacy software systems.