CVE-2005-3859 in q-news
Summary
by MITRE
PHP remote file inclusion vulnerability in q-news.php in Q-News 2.0 allows remote attackers to execute arbitrary PHP code via a URL in the id parameter.
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Analysis
by VulDB Data Team • 11/07/2025
The vulnerability identified as CVE-2005-3859 represents a critical remote file inclusion flaw within the Q-News 2.0 content management system, specifically affecting the q-news.php script. This issue arises from insufficient input validation and sanitization mechanisms that fail to properly restrict user-supplied data from being directly incorporated into file inclusion operations. The vulnerability is classified under CWE-98 as "Improper Control of Generation of Code ('Code Injection')" and aligns with ATT&CK technique T1190 "Exploit Public-Facing Application" within the context of web application exploitation. The affected parameter, id, accepts URL values that are subsequently processed through include or require statements without adequate sanitization, creating an avenue for malicious actors to inject and execute arbitrary PHP code on the target system.
The technical exploitation of this vulnerability occurs when an attacker crafts a malicious URL containing a remote file reference and passes it through the id parameter of the q-news.php script. When the application processes this input, it blindly includes the specified remote file, effectively executing any PHP code contained within that file on the vulnerable server. This type of vulnerability is particularly dangerous because it allows attackers to bypass normal authentication mechanisms and gain full control over the affected system. The flaw demonstrates poor input validation practices and violates fundamental security principles of least privilege and input sanitization that are essential in preventing code injection attacks.
Operationally, this vulnerability poses significant risks to organizations utilizing Q-News 2.0, as it enables remote code execution without requiring authentication or prior access to the system. Attackers can leverage this weakness to upload backdoors, steal sensitive data, modify content, or establish persistent access to the compromised server. The impact extends beyond immediate code execution to include potential lateral movement within networks, as compromised systems can serve as launching points for further attacks. This vulnerability is particularly concerning in environments where the affected application is publicly accessible and where proper security controls such as input validation, output encoding, and secure coding practices are not implemented.
Mitigation strategies for CVE-2005-3859 should focus on immediate remediation through patching the affected Q-News 2.0 application to version 2.1 or later, which contains the necessary fixes for this vulnerability. Organizations should implement input validation and sanitization measures that reject or properly encode any URL parameters before they are processed in file inclusion operations. Security controls should include disabling remote file inclusion functionality in PHP configurations, implementing proper parameter validation, and using allowlists for acceptable input values. Network-level protections such as web application firewalls and intrusion prevention systems can provide additional layers of defense. The vulnerability also underscores the importance of regular security assessments, code reviews, and adherence to secure coding practices that prevent similar issues from occurring in other applications. Organizations should also consider implementing automated patch management processes to ensure timely application of security updates and reduce the window of exposure to known vulnerabilities.