CVE-2010-2050 in Com Mscomment
Summary
by MITRE
Directory traversal vulnerability in the Moron Solutions MS Comment (com_mscomment) component 0.8.0b for Joomla! allows remote attackers to read arbitrary files via a .. (dot dot) in the controller parameter to index.php.
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Analysis
by VulDB Data Team • 08/18/2025
The CVE-2010-2050 vulnerability represents a critical directory traversal flaw within the Moron Solutions MS Comment component version 0.8.0b for Joomla! platforms. This vulnerability stems from inadequate input validation mechanisms that fail to properly sanitize user-supplied parameters before processing them within the application's file system operations. The flaw specifically manifests when the controller parameter in the index.php script accepts directory traversal sequences such as .. (dot dot) characters, enabling attackers to navigate beyond the intended directory structure and access restricted files on the server.
The technical exploitation of this vulnerability occurs through the manipulation of the controller parameter in HTTP requests sent to the vulnerable Joomla! installation. When an attacker submits a request containing directory traversal sequences in the controller parameter, the application processes these inputs without proper validation, allowing the attacker to specify arbitrary file paths. This weakness directly maps to CWE-22, which defines improper limitation of a pathname to a restricted directory, commonly known as path traversal or directory traversal vulnerabilities. The vulnerability's classification aligns with ATT&CK technique T1083, which covers directory and file permissions enumeration, as attackers can leverage this flaw to discover and access sensitive files that should remain protected.
The operational impact of CVE-2010-2050 extends beyond simple file access, as it can potentially expose critical system information including database configuration files, administrative credentials, application source code, and other sensitive data stored on the server. Attackers can exploit this vulnerability to read configuration files containing database passwords, administrator login details, and other confidential information that could lead to full system compromise. The vulnerability affects not only the immediate Joomla! installation but also potentially exposes underlying server infrastructure components that may be running with elevated privileges, creating opportunities for privilege escalation attacks and further lateral movement within the network.
Mitigation strategies for this vulnerability require immediate patching of the affected Moron Solutions MS Comment component to version 0.8.0b or later, which includes proper input validation and sanitization mechanisms. System administrators should implement comprehensive input validation at multiple layers, including web application firewalls that can detect and block directory traversal attempts, proper file access controls that restrict file system permissions, and regular security audits of installed Joomla! components to identify and remediate similar vulnerabilities. Additionally, implementing principle of least privilege access controls, disabling unnecessary file system operations, and conducting regular vulnerability assessments can significantly reduce the risk exposure associated with such directory traversal flaws. The vulnerability demonstrates the critical importance of proper input validation and access control mechanisms in web applications, particularly in content management systems that handle user-supplied data through multiple parameters.