CVE-2005-0698 in phpWebLog
Summary
by MITRE
PHP remote file inclusion vulnerability in PHPWebLog 0.5.3 and earlier allows remote attackers to execute arbitrary PHP code by modifying the (1) G_PATH parameter to init.inc.php or the (2) PATH parameter to index.php to reference a URL on a remote web server that contains the code.
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Analysis
by VulDB Data Team • 10/24/2025
The vulnerability described in CVE-2005-0698 represents a critical remote file inclusion flaw in PHPWebLog version 0.5.3 and earlier systems. This vulnerability falls under the category of insecure direct object references and improper input validation, creating a pathway for malicious actors to execute arbitrary code on affected systems. The flaw specifically manifests when the application fails to properly validate or sanitize user-supplied input parameters that are used to include external files. Attackers can exploit this weakness by manipulating the G_PATH parameter in init.inc.php or the PATH parameter in index.php to point to malicious remote web servers containing crafted PHP code.
The technical implementation of this vulnerability stems from PHP's ability to include and execute files from remote locations when the include or require functions are used with user-controllable input. When PHPWebLog processes these parameters without proper validation, it accepts any URL provided by the attacker and attempts to execute the code contained within the remote file. This creates a dangerous condition where an attacker can inject their own malicious code into the web application's execution flow, effectively gaining control over the affected system. The vulnerability is particularly severe because it allows for arbitrary code execution, which can lead to complete system compromise, data theft, or further lateral movement within the network infrastructure.
The operational impact of this vulnerability extends beyond simple code execution, as it provides attackers with the capability to establish persistent access to the compromised system. Once an attacker successfully exploits this vulnerability, they can upload additional malicious files, create backdoors, or even escalate privileges to gain administrative control over the web server. From a cybersecurity perspective, this vulnerability directly relates to multiple tactics outlined in the MITRE ATT&CK framework, specifically covering initial access through web application attacks, execution via code injection, and privilege escalation. The vulnerability also aligns with CWE-98, which describes improper input validation leading to remote file inclusion, and CWE-20, which addresses improper input validation in general. Organizations running vulnerable versions of PHPWebLog face significant risk of unauthorized access and potential data breaches, as the vulnerability can be exploited without requiring authentication or specialized tools beyond basic web browsing capabilities.
Mitigation strategies for this vulnerability primarily focus on immediate patching of the affected software to version 0.5.4 or later, which contains the necessary security fixes. Additionally, administrators should implement input validation measures to prevent user-supplied parameters from being directly used in file inclusion operations. This includes sanitizing all input parameters, implementing strict whitelisting of acceptable file paths, and disabling remote file inclusion features in PHP configuration. Network-level protections such as web application firewalls can help detect and block attempts to exploit this vulnerability, while regular security audits and penetration testing should be conducted to identify similar weaknesses in other applications. The vulnerability also underscores the importance of following secure coding practices, particularly regarding the use of dynamic file inclusion functions and the necessity of input validation at multiple layers within web applications.