CVE-2006-5881 in NuCommunity
Summary
by MITRE
SQL injection vulnerability in cl_CatListing.asp in Dynamic Dataworx NuCommunity 1.0 allows remote attackers to execute arbitrary SQL commands via the cl_cat_ID parameter.
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Analysis
by VulDB Data Team • 04/27/2026
The vulnerability identified as CVE-2006-5881 represents a critical SQL injection flaw within the Dynamic Dataworx NuCommunity 1.0 web application, specifically affecting the cl_CatListing.asp component. This issue stems from inadequate input validation and sanitization mechanisms that fail to properly handle user-supplied data before incorporating it into database queries. The vulnerability manifests through the cl_cat_ID parameter, which serves as the primary attack vector for malicious actors seeking to manipulate the underlying database system. The flaw exists at the application layer where user input directly influences SQL command construction without appropriate filtering or escaping mechanisms.
From a technical perspective, this vulnerability constitutes a classic SQL injection attack scenario where the cl_cat_ID parameter accepts user input that gets concatenated directly into SQL queries without proper sanitization. When an attacker provides malicious input through this parameter, the application fails to validate or escape special SQL characters, allowing attackers to inject arbitrary SQL commands that execute within the database context. The vulnerability follows the CWE-89 classification for SQL injection, specifically categorized under CWE-352 which addresses cross-site request forgery vulnerabilities, though the primary concern here is database command execution. The attack surface is particularly concerning as it enables remote code execution capabilities and full database access, potentially allowing attackers to extract sensitive information, modify data, or even escalate privileges within the database environment.
The operational impact of this vulnerability extends beyond simple data compromise, as it provides attackers with extensive control over the affected system's database layer. Successful exploitation could result in complete database takeover, enabling unauthorized access to all stored information including user credentials, personal data, and system configurations. The remote nature of the attack means that threat actors can exploit this vulnerability from anywhere on the internet without requiring physical access to the system. This vulnerability directly maps to several ATT&CK techniques including T1190 for exploit public-facing application and T1071.004 for application layer protocol, demonstrating how attackers can leverage web application flaws to achieve their objectives. Organizations running this vulnerable version of NuCommunity face significant risk of data breaches, regulatory compliance violations, and potential system compromise that could affect business continuity and customer trust.
Mitigation strategies for this vulnerability should prioritize immediate patching of the affected NuCommunity 1.0 application to the latest available version that addresses this SQL injection flaw. Additionally, implementing proper input validation and parameterized queries within the cl_CatListing.asp component would prevent malicious SQL commands from being executed. Organizations should deploy web application firewalls to monitor and filter suspicious traffic patterns targeting the vulnerable parameter. Database access controls should be implemented to limit the privileges of database accounts used by the application, ensuring that even if exploitation occurs, the damage is minimized. Regular security assessments and vulnerability scanning should be conducted to identify similar issues within the broader application ecosystem, as this vulnerability type often indicates broader architectural security weaknesses that require comprehensive remediation approaches.