CVE-2018-7312 in Alexandria Book Library
Summary
by MITRE
SQL Injection exists in the Alexandria Book Library 3.1.2 component for Joomla! via the letter parameter.
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Analysis
by VulDB Data Team • 06/01/2025
The CVE-2018-7312 vulnerability represents a critical sql injection flaw within the Alexandria Book Library component version 3.1.2 for Joomla! platforms. This vulnerability specifically targets the letter parameter handling mechanism within the component's code execution flow. The flaw allows malicious actors to manipulate database queries through crafted input values, potentially enabling unauthorized access to sensitive information stored within the application's database infrastructure. The vulnerability stems from inadequate input validation and sanitization practices within the component's parameter processing logic, creating an exploitable pathway for attackers to inject malicious sql commands directly into the application's database layer.
The technical implementation of this vulnerability follows established patterns of sql injection attacks where user-supplied parameters are directly concatenated into sql query strings without proper escaping or parameterization. When the letter parameter is processed within the Alexandria Book Library component, the application fails to adequately sanitize or validate the input before incorporating it into database queries. This lack of proper input handling creates a condition where attackers can inject sql payload sequences that bypass authentication mechanisms or extract confidential data from the underlying database. The vulnerability operates at the application layer and requires minimal privileges to exploit, making it particularly dangerous for web applications that store sensitive user information or business-critical data.
The operational impact of CVE-2018-7312 extends beyond simple data theft to encompass complete database compromise and potential system infiltration. Attackers exploiting this vulnerability could gain access to user credentials, personal information, and other sensitive data stored within the application's database. The vulnerability affects all Joomla installations makes it a significant concern for security administrators managing multiple web applications.
Mitigation strategies for CVE-2018-7312 should prioritize immediate component updates to versions that address the sql injection vulnerability through proper input validation and parameterized query implementation. System administrators should implement comprehensive input sanitization measures and ensure all user-supplied parameters undergo rigorous validation before database processing. The vulnerability aligns with CWE-89 sql injection weakness classification and represents a direct violation of secure coding practices recommended by the owasp foundation and mitre corporation. Organizations should also deploy web application firewalls and intrusion detection systems to monitor for exploitation attempts and implement proper database access controls to limit the potential impact of successful attacks. Regular security audits and vulnerability assessments should be conducted to identify similar weaknesses in other application components and ensure comprehensive protection against sql injection threats.