CVE-2006-5287 in Xeobook
Summary
by MITRE
Multiple SQL injection vulnerabilities in sign.php in Xeobook 0.93 allow remote attackers to execute arbitrary SQL commands via (1) the User-Agent HTTP header, or the (2) gb_entry_text, (3) gb_location, (4) gb_fullname, or (5) gb_sex parameters.
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Analysis
by VulDB Data Team • 04/24/2026
The vulnerability identified as CVE-2006-5287 represents a critical SQL injection flaw in the Xeobook 0.93 content management system that exposes multiple attack vectors for remote code execution. This vulnerability resides within the sign.php script which processes user input without proper sanitization, creating opportunities for malicious actors to manipulate database queries through various HTTP parameters. The flaw demonstrates poor input validation practices that violate fundamental security principles and represents a classic example of insufficient data sanitization in web applications.
The technical exploitation of this vulnerability occurs through multiple pathways that collectively demonstrate the weakness in the application's parameter handling. Attackers can inject malicious SQL commands through the User-Agent HTTP header, which is typically used by web servers to identify client software, or through five specific parameters including gb_entry_text, gb_location, gb_fullname, and gb_sex. These parameters are processed without adequate validation or sanitization, allowing attackers to craft malicious payloads that bypass normal input filtering mechanisms. The vulnerability specifically aligns with CWE-89 which categorizes SQL injection as a weakness where untrusted data is incorporated into SQL queries without proper escaping or parameterization.
The operational impact of this vulnerability extends beyond simple data theft or corruption, as it enables full database compromise and potential system takeover. Remote attackers with knowledge of the vulnerability can execute arbitrary SQL commands, potentially gaining access to sensitive user information, modifying database content, or even escalating privileges within the application environment. The attack surface is particularly concerning because it leverages HTTP headers and form parameters that are commonly used in legitimate user interactions, making detection more difficult and the attack more stealthy. This vulnerability directly maps to several ATT&CK techniques including T1190 for exploitation of remote services and T1071.004 for application layer protocol usage.
Mitigation strategies for this vulnerability must address the root cause of insufficient input validation while implementing comprehensive security controls. Organizations should immediately implement proper parameterized queries or prepared statements to prevent SQL injection attacks, as recommended by OWASP and NIST guidelines. Input validation should be strengthened to reject malicious characters and patterns, while output encoding should be implemented to prevent data from being interpreted as executable code. Additionally, implementing web application firewalls and intrusion detection systems can help detect and block exploitation attempts. The vulnerability highlights the critical importance of defense-in-depth strategies and proper secure coding practices that should be integrated throughout the software development lifecycle to prevent similar issues in future implementations.