CVE-2006-2852 in dotWidget
Summary
by MITRE
PHP remote file inclusion vulnerability in dotWidget CMS 1.0.6 and earlier, when register_globals is enabled, allows remote attackers to execute arbitrary PHP code via a URL in the file_path parameter in (1) index.php, (2) feedback.php, and (3) printfriendly.php.
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Analysis
by VulDB Data Team • 10/04/2025
The vulnerability described in CVE-2006-2852 represents a critical remote file inclusion flaw affecting dotWidget CMS versions 1.0.6 and earlier. This issue specifically exploits the dangerous combination of PHP's register_globals directive being enabled alongside insecure parameter handling in three key script files. The vulnerability exists because the CMS fails to properly validate or sanitize user-supplied input before incorporating it into file operations, creating an avenue for malicious actors to execute arbitrary code on the target server.
The technical exploitation of this vulnerability occurs through manipulation of the file_path parameter within three distinct PHP scripts: index.php, feedback.php, and printfriendly.php. When register_globals is enabled, PHP automatically creates global variables from GET, POST, and cookie data, which fundamentally undermines input validation mechanisms. Attackers can craft malicious URLs containing PHP code within the file_path parameter, and when these parameters are processed without proper sanitization, the CMS inadvertently includes and executes the attacker-controlled code. This represents a classic remote code execution vulnerability that leverages the inherent insecurity of register_globals to bypass normal access controls and input validation.
The operational impact of this vulnerability extends beyond simple code execution, as it provides attackers with complete control over the affected server. Once exploited, malicious actors can upload additional malware, establish backdoors, access sensitive data, modify content, or use the compromised server as a launching point for further attacks. The vulnerability affects web applications running PHP with register_globals enabled, which was common in older server configurations and represents a significant security gap in the CMS's input handling architecture. This flaw directly violates security principles outlined in the CWE-94 category for Improper Control of Generation of Code and aligns with ATT&CK techniques for Command and Control and Execution through the use of remote code execution capabilities.
The mitigation strategy for this vulnerability requires immediate action to disable register_globals in PHP configuration, which is considered a fundamental security measure that should never be enabled in production environments. Additionally, developers must implement proper input validation and sanitization techniques, ensuring that all user-supplied parameters are rigorously checked before being used in file inclusion operations. The recommended approach includes using allow_url_include and allow_url_fopen directives set to off, implementing proper parameter validation, and upgrading to patched versions of dotWidget CMS. Organizations should also consider implementing web application firewalls and regular security audits to detect similar vulnerabilities. The vulnerability demonstrates the critical importance of following secure coding practices and adhering to industry standards such as those outlined in the OWASP Top Ten, where this type of vulnerability would be classified as a high-risk issue requiring immediate remediation.