CVE-2010-0467 in Com Ccnewsletter
Summary
by MITRE
Directory traversal vulnerability in the ccNewsletter (com_ccnewsletter) component 1.0.5 for Joomla! allows remote attackers to read arbitrary files via a .. (dot dot) in the controller parameter in a ccnewsletter action to index.php.
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Analysis
by VulDB Data Team • 04/29/2026
The CVE-2010-0467 vulnerability represents a critical directory traversal flaw within the ccNewsletter component version 1.0.5 for Joomla! platforms. This security weakness enables remote attackers to access arbitrary files on the server by exploiting improper input validation in the controller parameter. The vulnerability specifically manifests when the ccnewsletter action is invoked through index.php with a malicious .. (dot dot) sequence in the controller parameter, allowing attackers to navigate beyond the intended directory structure and access sensitive files that should remain restricted.
The technical implementation of this vulnerability stems from inadequate sanitization of user-supplied input within the component's controller handling mechanism. When Joomla! processes the controller parameter without proper validation or filtering, it fails to prevent path traversal sequences that could lead to unauthorized file access. The flaw operates at the application level where the component does not adequately verify or sanitize the controller input before using it to determine file paths for processing. This type of vulnerability falls under the Common Weakness Enumeration category CWE-22, which specifically addresses improper limitation of a pathname to a restricted directory, commonly known as path traversal or directory traversal attacks.
From an operational perspective, this vulnerability presents severe risks to Joomla! websites utilizing the affected ccNewsletter component. Attackers can exploit this weakness to access configuration files, database credentials, user information, and other sensitive data stored on the web server. The impact extends beyond simple information disclosure as it could potentially enable further exploitation, including arbitrary code execution or complete system compromise. The vulnerability is particularly dangerous because it requires no authentication and can be exploited remotely, making it an attractive target for automated attacks and mass scanning operations. Security researchers have documented similar vulnerabilities in numerous web applications where improper input validation leads to directory traversal conditions.
Mitigation strategies for CVE-2010-0467 involve multiple layers of defensive measures that align with established security practices. The primary recommendation is to upgrade to a patched version of the ccNewsletter component or remove the component entirely if it is no longer needed. System administrators should implement proper input validation and sanitization mechanisms that filter out potentially malicious path traversal sequences before they are processed by the application. Additionally, implementing web application firewalls with rules specifically designed to detect and block directory traversal attempts can provide an additional layer of protection. Organizations should also consider implementing principle of least privilege access controls and regular security audits to identify and remediate similar vulnerabilities. The ATT&CK framework categorizes this type of vulnerability under T1059.007 for command and scripting interpreter with specific focus on path traversal techniques that enable lateral movement and privilege escalation within compromised systems.