CVE-2009-4599 in Com Jsjobs
Summary
by MITRE
Multiple SQL injection vulnerabilities in the JS Jobs (com_jsjobs) component 1.0.5.6 for Joomla! allow remote attackers to execute arbitrary SQL commands via (1) the md parameter in an employer view_company action to index.php or (2) the oi parameter in an employer view_job action to index.php.
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Analysis
by VulDB Data Team • 06/16/2025
The vulnerability identified as CVE-2009-4599 represents a critical security flaw in the JS Jobs component version 1.0.5.6 for Joomla content management system, specifically targeting the component's parameter handling in employer-related actions. These flaws exist in the way the application processes user input through HTTP parameters, creating pathways for malicious SQL code execution that can compromise the entire database infrastructure.
The technical implementation of these vulnerabilities stems from insufficient input validation and sanitization within the JS Jobs component's codebase. Attackers can exploit the vulnerability through two distinct attack vectors involving the md parameter during employer view_company actions and the oi parameter during employer view_job actions within the index.php file. Both attack paths allow unauthorized users to inject malicious SQL code directly into database queries without proper sanitization or parameterization. The vulnerability manifests when user-supplied data is directly concatenated into SQL statements without appropriate escaping or validation mechanisms, violating fundamental secure coding practices. This weakness aligns with CWE-89, which specifically addresses SQL injection flaws in software applications.
The operational impact of CVE-2009-4599 extends beyond simple data theft, as successful exploitation can lead to complete database compromise, unauthorized data modification, and potential system-wide infiltration. Attackers can leverage these vulnerabilities to extract sensitive information including user credentials, job listings, employer details, and potentially other system data stored within the Joomla! database. The remote nature of these attacks means that no local system access is required, making the vulnerability particularly dangerous for web applications. According to ATT&CK framework categorization, this represents a technique under T1190 - Exploit Public-Facing Application, where adversaries target web applications for database access. The vulnerability also aligns with T1071.004 - Application Layer Protocol: DNS, as attackers may use the compromised system to launch further attacks or establish persistence.
Mitigation strategies for this vulnerability require immediate patching of the JS Jobs component to version 1.0.5.7 or later, which contains the necessary security fixes. System administrators should implement proper input validation and parameterized queries throughout the application codebase to prevent similar vulnerabilities from occurring in other components. The implementation of web application firewalls and database activity monitoring can provide additional layers of protection by detecting and blocking malicious SQL injection attempts. Organizations should also conduct comprehensive security assessments of their Joomla! installations to identify other potentially vulnerable components, as this vulnerability demonstrates the importance of maintaining up-to-date third-party extensions. Regular security audits and adherence to secure coding standards, including the OWASP Top Ten guidelines, should be implemented to prevent future SQL injection vulnerabilities in web applications.