CVE-2005-0720 in mcNews
Summary
by MITRE
PHP remote file inclusion vulnerability in admin/header.php in PHP mcNews 1.3 allows remote attackers to execute arbitrary PHP code by modifying the skinfile parameter to reference a URL on a remote web server that contains the code.
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Analysis
by VulDB Data Team • 09/21/2025
The CVE-2005-0720 vulnerability represents a critical remote file inclusion flaw in PHP mcNews 1.3 that demonstrates a fundamental security weakness in input validation and dynamic code execution mechanisms. This vulnerability specifically affects the admin/header.php component of the PHP mcNews content management system, where user-supplied parameters are directly incorporated into file inclusion operations without proper sanitization or validation. The flaw arises from the application's failure to properly validate the skinfile parameter, allowing malicious actors to inject external URLs that point to remote web servers containing malicious PHP code. This type of vulnerability falls under the category of CWE-98, which describes improper input validation leading to remote file inclusion attacks, and aligns with ATT&CK technique T1190 for exploiting vulnerabilities in web applications.
The technical implementation of this vulnerability exploits the inherent trust placed by PHP applications in dynamic file inclusion operations, where the include or require functions are used with user-controllable input. When an attacker manipulates the skinfile parameter to reference a remote URL, the PHP interpreter executes the code from that external location, effectively granting the attacker remote code execution capabilities. The vulnerability's impact is amplified by the fact that it occurs within the administrative interface, potentially allowing attackers to gain elevated privileges and full control over the affected system. The flaw represents a classic case of insecure direct object reference combined with improper input validation, where the application's trust in user input leads directly to arbitrary code execution.
From an operational standpoint, this vulnerability creates a severe risk landscape for organizations using PHP mcNews 1.3, as it enables remote attackers to execute malicious code on the target server without requiring authentication or physical access. The attack surface extends beyond simple code execution to include potential data breaches, system compromise, and lateral movement within network environments. Security professionals should recognize this vulnerability as a prime example of how seemingly minor input validation gaps can result in catastrophic security consequences, particularly when affecting administrative components of web applications. The vulnerability's exploitation typically follows a pattern where attackers craft malicious URLs with payloads designed to establish backdoors, exfiltrate data, or perform further reconnaissance on the compromised system.
Mitigation strategies for CVE-2005-0720 must address both immediate remediation and long-term architectural improvements to prevent similar vulnerabilities from occurring. Organizations should implement strict input validation and sanitization for all user-supplied parameters, particularly those used in dynamic file inclusion operations. The recommended approach involves disabling remote file inclusion features entirely and implementing whitelisting mechanisms for valid file paths. Additionally, security measures should include restricting file inclusion to local paths only, implementing proper access controls for administrative interfaces, and applying the principle of least privilege to limit the damage potential of such exploits. Network-level protections such as web application firewalls and intrusion detection systems can provide additional layers of defense, while regular security audits and vulnerability assessments should be conducted to identify similar weaknesses in other applications. The vulnerability serves as a critical reminder of the importance of secure coding practices and the necessity of implementing robust input validation mechanisms to prevent remote code execution attacks.