CVE-2009-4059 in Com Joomclip
Summary
by MITRE
SQL injection vulnerability in the JoomClip (com_joomclip) component for Joomla! allows remote attackers to execute arbitrary SQL commands via the cat parameter in a thumbs action to index.php.
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Analysis
by VulDB Data Team • 06/15/2025
The CVE-2009-4059 vulnerability represents a critical sql injection flaw within the JoomClip component for Joomla installations that utilize the JoomClip component, making it a significant concern for web application security.
The technical flaw stems from inadequate input validation and sanitization within the Joomla! component's processing logic. When a user submits a request containing the cat parameter through the thumbs action endpoint in index.php, the application fails to properly escape or validate this input before incorporating it into sql queries. This allows attackers to inject malicious sql code that executes within the database context, potentially enabling full database compromise and unauthorized access to sensitive information. The vulnerability operates at the application layer and specifically targets the component's handling of category parameters during thumbnail generation operations.
The operational impact of this vulnerability extends beyond simple data theft, as it provides attackers with the capability to execute arbitrary sql commands on the affected database server. Successful exploitation could result in complete database compromise, data exfiltration, modification of critical application data, or even privilege escalation within the application environment. Attackers could potentially gain access to user credentials, sensitive business data, or system configuration details that would normally be protected by proper database access controls. The remote nature of this vulnerability means that attackers do not require physical access to the system to exploit it.
Mitigation strategies for CVE-2009-4059 should prioritize immediate patching of the affected Joomla! component, as the vulnerability has been widely documented and exploited in the wild. Organizations should implement proper input validation and parameterized queries throughout their applications to prevent similar vulnerabilities from occurring. The use of web application firewalls and input sanitization techniques can provide additional protection layers. From a cybersecurity perspective, this vulnerability aligns with CWE-89 sql injection and follows patterns commonly seen in the ATT&CK framework under the command and control and credential access phases, demonstrating how initial exploitation can lead to broader system compromise. Regular security audits and vulnerability assessments should be conducted to identify and remediate similar weaknesses in other components and applications within the organization's infrastructure.