CVE-2006-6051 in MosReporter
Summary
by MITRE
PHP remote file inclusion vulnerability in reporter.logic.php in the MosReporter (com_reporter) component for Mambo and Joomla! allows remote attackers to execute arbitrary PHP code via a URL in the mosConfig_absolute_path parameter.
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Analysis
by VulDB Data Team • 04/28/2026
The vulnerability identified as CVE-2006-6051 represents a critical remote file inclusion flaw within the MosReporter component of Mambo and Joomla! content management systems. This vulnerability specifically affects the reporter.logic.php file and exploits a dangerous parameter handling mechanism that permits attackers to inject malicious URLs into the mosConfig_absolute_path parameter. The flaw stems from inadequate input validation and sanitization practices that allow external user-controlled data to directly influence file inclusion operations within the application's core logic.
The technical implementation of this vulnerability follows the classic remote file inclusion pattern where the application constructs file paths using user-supplied input without proper verification or filtering. When the mosConfig_absolute_path parameter receives a malicious URL, the system processes this input as a legitimate file path, leading to the inclusion and execution of remote PHP code. This type of vulnerability maps directly to CWE-88, which describes improper neutralization of special elements used in an expression, and CWE-94, which encompasses the execution of arbitrary code or commands. The vulnerability exists at the intersection of improper input validation and insecure file handling practices, creating a pathway for attackers to escalate privileges and gain unauthorized control over the affected web server.
The operational impact of this vulnerability extends far beyond simple code execution, as it provides attackers with complete control over the target system. Once exploited, the malicious PHP code can perform various malicious activities including data exfiltration, privilege escalation, backdoor installation, and further network reconnaissance. The attack surface is particularly concerning given that Mambo and Joomla! were widely used content management platforms during the affected period, meaning that successful exploitation could compromise numerous web applications. This vulnerability aligns with ATT&CK technique T1190, which covers the exploitation of remote services, and T1059, which involves the execution of commands through various interfaces. The implications for organizations using these platforms include complete system compromise, data loss, and potential lateral movement within network environments where these applications are deployed.
Mitigation strategies for this vulnerability require immediate patching of affected systems to address the root cause of the flawed parameter handling. Organizations should implement strict input validation measures that prevent external URLs from being accepted in critical system parameters, particularly those used for file inclusion operations. The recommended approach includes sanitizing all user inputs, implementing whitelisting mechanisms for acceptable file paths, and enforcing proper access controls to prevent unauthorized code execution. Additionally, security configurations should include disabling remote file inclusion features and implementing web application firewalls to monitor and block suspicious URL patterns. The remediation process must also include comprehensive security audits of all component files to identify similar vulnerabilities and ensure that no other applications within the system suffer from comparable flaws. Regular security updates and vulnerability assessments are essential to maintain protection against evolving attack vectors targeting web application frameworks.