CVE-2006-2503 in DeluxeBB
Summary
by MITRE
SQL injection vulnerability in misc.php in DeluxeBB 1.06 allows remote attackers to execute arbitrary SQL commands via the name parameter.
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Analysis
by VulDB Data Team • 09/23/2025
The vulnerability identified as CVE-2006-2503 represents a critical SQL injection flaw within the DeluxeBB 1.06 bulletin board system, specifically affecting the misc.php script. This weakness resides in how the application processes user input through the name parameter, creating an exploitable condition that enables remote attackers to manipulate database queries. The vulnerability stems from inadequate input validation and sanitization practices within the software's codebase, allowing malicious actors to inject malicious SQL commands that bypass normal authentication and authorization mechanisms.
The technical implementation of this vulnerability falls under CWE-89 which categorizes SQL injection as a common weakness in web applications where untrusted data is directly incorporated into SQL queries without proper escaping or parameterization. The flaw occurs when the name parameter from user input is concatenated directly into a SQL statement without appropriate sanitization measures, enabling attackers to alter the intended query structure. This allows for unauthorized database access, data manipulation, and potentially complete system compromise depending on the database privileges and the nature of the injected commands.
Operationally, this vulnerability presents significant risks to organizations using DeluxeBB 1.06, as it enables remote code execution and data breaches without requiring authentication. Attackers can exploit this weakness to extract sensitive information from the database, modify user accounts, inject malicious content, or even escalate privileges within the system. The impact extends beyond simple data theft as the vulnerability can be leveraged for persistent access, making it particularly dangerous for long-term compromise. The attack surface is broad since the vulnerability affects the misc.php script, which is likely used for various administrative functions and user interactions within the bulletin board system.
Mitigation strategies for this vulnerability should include immediate patching of the DeluxeBB 1.06 software to the latest available version that addresses the SQL injection flaw. Organizations should implement proper input validation and sanitization measures, ensuring all user-supplied data undergoes strict filtering before being processed in database queries. The implementation of prepared statements or parameterized queries should be mandatory to prevent direct concatenation of user input into SQL commands. Additionally, network segmentation and firewall rules should restrict access to administrative functions, while regular security audits and penetration testing should be conducted to identify similar vulnerabilities in other applications. This vulnerability aligns with ATT&CK technique T1190 which covers exploitation of remote services, and T1071.004 which covers application layer protocol traffic filtering, emphasizing the need for comprehensive defensive measures.