CVE-2010-2036 in Com Perchafieldsattach
Summary
by MITRE
Directory traversal vulnerability in the Percha Fields Attach (com_perchafieldsattach) component 1.x 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.
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Analysis
by VulDB Data Team • 08/20/2025
The CVE-2010-2036 vulnerability represents a critical directory traversal flaw within the Percha Fields Attach component version 1.x for Joomla! platforms. This vulnerability resides in the component's handling of user input through the controller parameter in the index.php file, creating an exploitable condition that allows remote attackers to access arbitrary files on the server. The vulnerability specifically manifests when the controller parameter contains .. (dot dot) sequences that are not properly sanitized or validated by the application's input processing mechanisms.
The technical exploitation of this vulnerability leverages the fundamental weakness in path resolution where the application fails to adequately validate or sanitize user-supplied input before using it in file system operations. When attackers craft malicious requests containing directory traversal sequences such as ../ or ..\, they can manipulate the component's controller parameter to navigate outside the intended directory structure and access files that should remain restricted. This flaw operates at the application layer and can be exploited without authentication, making it particularly dangerous as it allows attackers to bypass normal access controls and potentially extract sensitive information from the server's file system.
The operational impact of CVE-2010-2036 extends beyond simple file disclosure, as the vulnerability can potentially enable attackers to gain access to configuration files, database credentials, application source code, and other sensitive materials stored on the web server. This type of vulnerability aligns with CWE-22 - Improper Limitation of a Pathname to a Restricted Directory, which is classified under the Common Weakness Enumeration framework as a fundamental security flaw in path traversal protections. The vulnerability's impact is further amplified by the fact that it affects the Joomla! content management system, which was widely deployed across numerous websites, potentially exposing a large attack surface.
The threat landscape for this vulnerability is particularly concerning as it enables attackers to perform reconnaissance and potentially escalate their privileges within the affected systems. According to ATT&CK framework categorization, this vulnerability would map to techniques involving T1083 - File and Directory Discovery and T1566 - Phishing, as attackers could use the information gathered to craft more sophisticated attacks or gain deeper system access. The vulnerability's exploitation can lead to complete system compromise, especially when combined with other attack vectors or when sensitive configuration files are accessed. Organizations running vulnerable versions of the Percha Fields Attach component should immediately implement mitigations including input validation, proper path sanitization, and application-level restrictions to prevent unauthorized file access. The vulnerability underscores the importance of proper input validation and the principle of least privilege in web application security, as it demonstrates how a single unvalidated parameter can provide attackers with unrestricted access to the underlying file system.