CVE-2010-1491 in Com Mmsblog
Summary
by MITRE
Directory traversal vulnerability in the MMS Blog (com_mmsblog) component 2.3.0 for Joomla! allows remote attackers to read arbitrary files and possibly have unspecified other impact via a .. (dot dot) in the controller parameter to index.php.
Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.
Analysis
by VulDB Data Team • 08/18/2025
The CVE-2010-1491 vulnerability represents a critical directory traversal flaw within the MMS Blog component version 2.3.0 for Joomla! platforms. This security weakness stems from inadequate input validation mechanisms that fail to properly sanitize user-supplied data before processing. The vulnerability specifically manifests when the application processes the controller parameter in the index.php file, allowing malicious actors to manipulate file access paths through the use of .. (dot dot) sequences in the input data.
The technical exploitation of this vulnerability occurs through manipulation of the controller parameter within the URL structure of the Joomla! application. When a remote attacker submits a crafted request containing directory traversal sequences such as ../../../../../etc/passwd, the application fails to validate these inputs properly, resulting in unauthorized file access. This flaw enables attackers to navigate through the file system hierarchy and access sensitive files that should normally be restricted. The vulnerability is particularly dangerous because it can potentially lead to arbitrary code execution, data exfiltration, and complete system compromise depending on the permissions of the web application and the files accessible through the traversal mechanism.
From an operational impact perspective, this vulnerability poses severe risks to Joomla installations face significant exposure to data breaches and unauthorized access to their web infrastructure.
Security practitioners should note that this vulnerability aligns with CWE-22, which describes improper limitation of a pathname to a restricted directory, commonly known as path traversal or directory traversal attacks. The flaw demonstrates inadequate input sanitization and validation practices that violate fundamental security principles. From an ATT&CK framework perspective, this vulnerability maps to techniques involving privilege escalation and credential access, as attackers can leverage the traversal capability to obtain sensitive information that may lead to further system compromise. Organizations should implement immediate mitigation strategies including updating to patched versions of the MMS Blog component, implementing web application firewalls, and conducting thorough security audits of their Joomla! installations to identify and remediate similar vulnerabilities.
The remediation approach for CVE-2010-1491 requires immediate attention from system administrators and security teams. The primary solution involves upgrading the MMS Blog component to a version that properly validates and sanitizes input parameters, eliminating the directory traversal capability. Additionally, implementing proper input validation mechanisms within the application code ensures that all user-supplied data undergoes rigorous sanitization before being processed. Organizations should also consider implementing network-level protections such as web application firewalls that can detect and block malicious traversal attempts. Regular security assessments and penetration testing should be conducted to identify similar vulnerabilities in other components and applications within the organization's infrastructure, ensuring comprehensive protection against similar attack vectors.