CVE-2006-5590 in ArticleBeach Script
Summary
by MITRE
PHP remote file inclusion vulnerability in index.php in ArticleBeach Script 2.0 and earlier allows remote attackers to execute arbitrary PHP code via a URL in the page parameter.
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Analysis
by VulDB Data Team • 04/25/2026
The CVE-2006-5590 vulnerability represents a critical remote file inclusion flaw in the ArticleBeach Script version 2.0 and earlier, demonstrating a fundamental security weakness in web application input validation and file handling mechanisms. This vulnerability resides within the index.php file and specifically targets the page parameter, which is processed without adequate sanitization or validation, creating an exploitable pathway for malicious actors to inject and execute arbitrary PHP code on the target server. The flaw exemplifies the classic remote code execution vulnerability pattern that has plagued numerous web applications throughout the history of internet security.
The technical exploitation of this vulnerability occurs when an attacker crafts a malicious URL containing a remote file reference and passes it through the page parameter to the vulnerable index.php script. When the application processes this input without proper validation, it attempts to include and execute the remote file, effectively allowing the attacker to inject arbitrary PHP code into the server environment. This vulnerability directly maps to CWE-88, which describes improper neutralization of special elements used in an expression, and CWE-94, which addresses the execution of arbitrary code or commands. The attack vector operates through the PHP include or require functions, which are commonly used for modular code organization but become dangerous when input parameters are not properly validated.
The operational impact of this vulnerability extends far beyond simple code execution, as it provides attackers with complete control over the affected server. Once exploited, adversaries can upload additional malicious files, establish backdoors, access sensitive data, modify content, and potentially use the compromised server as a launchpad for further attacks within the network. The vulnerability's severity is amplified by its remote nature, meaning attackers do not require local access or credentials to exploit it. According to the ATT&CK framework, this vulnerability corresponds to T1190 for exploit public-facing application and T1059 for command and scripting interpreter, highlighting how attackers can leverage such flaws to establish persistent access and conduct reconnaissance activities. The impact affects not only the immediate web application but can also compromise the entire hosting environment, potentially leading to data breaches, service disruption, and regulatory compliance violations.
Mitigation strategies for CVE-2006-5590 require immediate implementation of input validation and sanitization measures, including disabling the ability to pass remote URLs to include functions, implementing strict parameter validation, and updating to patched versions of the ArticleBeach Script. Organizations should also deploy web application firewalls, monitor for suspicious include patterns, and conduct regular security assessments to identify similar vulnerabilities in other applications. The fix typically involves modifying the vulnerable code to reject external URLs and implement proper input validation before processing the page parameter, ensuring that only local, predefined file paths are accepted. Additionally, administrators should follow secure coding practices such as those outlined in OWASP Top Ten and the CERT Secure Coding Standards to prevent similar vulnerabilities in future development cycles.