CVE-2005-3872 in Ugroup
Summary
by MITRE
Multiple SQL injection vulnerabilities in Ugroup 2.6.2 and earlier allow remote attackers to execute arbitrary SQL commands via the (1) FORUM_ID parameter in forum.php, and the (2) TOPIC_ID, (3) FORUM_ID, and (4) CAT_ID parameters in topic.php.
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Analysis
by VulDB Data Team • 12/23/2025
The vulnerability identified as CVE-2005-3872 represents a critical security flaw in Ugroup version 2.6.2 and earlier systems, exposing multiple pathways for remote attackers to execute arbitrary SQL commands through carefully crafted input parameters. This vulnerability falls under the well-documented category of SQL injection attacks as classified by CWE-89, which specifically addresses improper neutralization of special elements used in SQL commands. The affected software demonstrates inadequate input validation and sanitization mechanisms, allowing malicious actors to manipulate database queries through user-controllable parameters.
The technical exploitation of this vulnerability occurs through four distinct parameter injection points within the Ugroup application. The primary attack vector involves the FORUM_ID parameter in forum.php, while secondary vectors target TOPIC_ID, FORUM_ID, and CAT_ID parameters in topic.php. These parameters are directly incorporated into SQL query constructions without proper sanitization or parameterization, creating opportunities for attackers to inject malicious SQL code that gets executed within the database context. This flaw enables attackers to bypass authentication mechanisms, extract sensitive data, modify database contents, or even escalate privileges within the application's database layer.
The operational impact of CVE-2005-3872 extends beyond simple data theft, as it provides attackers with comprehensive database access capabilities that can compromise the entire application infrastructure. Remote attackers can leverage these vulnerabilities to perform unauthorized data manipulation, including data deletion, modification, or unauthorized access to sensitive user information. The vulnerability's widespread nature across multiple parameters increases the attack surface and reduces the complexity of exploitation, making it particularly dangerous for organizations relying on vulnerable Ugroup installations. This type of vulnerability directly aligns with ATT&CK technique T1071.004 for application layer protocol manipulation and T1046 for network service enumeration.
Mitigation strategies for this vulnerability require immediate implementation of proper input validation and parameterized query construction throughout the affected application code. Organizations should implement input sanitization routines that filter or escape special characters commonly used in SQL injection attacks, including single quotes, semicolons, and comment markers. The recommended approach involves adopting prepared statements or parameterized queries that separate SQL code from data, effectively preventing malicious input from being interpreted as executable SQL commands. Additionally, implementing proper access controls, database user privilege management, and regular security audits can significantly reduce the potential impact of such vulnerabilities. System administrators should also consider implementing web application firewalls and intrusion detection systems to monitor for suspicious SQL injection patterns and provide additional defense layers against exploitation attempts.