CVE-2010-1955 in Com Blogfactory
Summary
by MITRE
Directory traversal vulnerability in the Deluxe Blog Factory (com_blogfactory) component 1.1.2 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 • 07/28/2025
The vulnerability identified as CVE-2010-1955 represents a critical directory traversal flaw within the Deluxe Blog Factory component version 1.1.2 for Joomla! platforms. This security weakness 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 specific vulnerability manifests when the controller parameter in index.php requests are not properly filtered, allowing malicious actors to manipulate file access paths through the use of directory traversal sequences such as .. (dot dot). This flaw exists within the component's architecture where user-controllable input directly influences file system navigation logic without appropriate security checks or sanitization measures.
The technical exploitation of this vulnerability occurs through manipulation of the controller parameter in HTTP requests sent to the Joomla! application. Attackers can construct malicious URLs that include directory traversal sequences in the controller parameter, enabling them to navigate beyond the intended directory structure and access arbitrary files on the web server. The flaw operates at the application layer where the component fails to validate or sanitize the controller parameter input, allowing the application to interpret and process these malicious sequences as legitimate file path navigation commands. This vulnerability directly maps to CWE-22, which defines improper limitation of a pathname to a restricted directory, commonly known as path traversal or directory traversal attacks. The weakness enables attackers to potentially access sensitive files such as configuration databases, user credentials, application source code, or other restricted resources that should not be accessible through normal application interfaces.
The operational impact of this vulnerability extends significantly beyond simple file disclosure, as it provides attackers with potential access to sensitive system information and data that could compromise the entire Joomla site running the vulnerable Deluxe Blog Factory component. Additionally, the vulnerability could facilitate further attacks such as privilege escalation, data exfiltration, or even complete system compromise if the attacker can access system-level files or configuration data that contains sensitive information.
Security mitigations for CVE-2010-1955 should focus on immediate component updates and input validation improvements. The primary remediation involves upgrading to a patched version of the Deluxe Blog Factory component that properly validates and sanitizes all user-supplied input parameters, particularly those used in file system operations. Organizations should implement strict input validation measures that filter or reject directory traversal sequences and other potentially malicious input patterns. The implementation of proper access controls and least privilege principles can help limit the impact of successful exploitation by ensuring that even if an attacker gains access to certain files, they cannot access critical system resources. Additionally, deployment of web application firewalls and security monitoring systems can help detect and prevent exploitation attempts. This vulnerability demonstrates the critical importance of input validation and proper parameter sanitization in web applications, aligning with ATT&CK technique T1059.007 for command and script injection, as well as T1566 for credential access through exploitation of application vulnerabilities. The incident underscores the necessity for regular security assessments, component updates, and comprehensive security testing to prevent such vulnerabilities from being exploited in production environments.