CVE-2006-5081 in QuickBlogger
Summary
by MITRE
PHP remote file inclusion vulnerability in acc.php in QuickBlogger (QB) 1.4 allows remote attackers to execute arbitrary PHP code via a URL in the page parameter.
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Analysis
by VulDB Data Team • 04/23/2026
The vulnerability identified as CVE-2006-5081 represents a critical remote file inclusion flaw in QuickBlogger version 1.4 that exposes the application to arbitrary code execution attacks. This vulnerability specifically affects the acc.php script within the QuickBlogger content management system, creating a pathway for malicious actors to inject and execute unauthorized PHP code on the target server. The flaw stems from inadequate input validation and sanitization mechanisms that fail to properly filter user-supplied data before incorporating it into file inclusion operations.
The technical implementation of this vulnerability occurs when the application accepts a URL parameter named 'page' in the acc.php script without sufficient validation. When an attacker supplies a malicious URL through this parameter, the application processes the input and attempts to include the remote file, effectively executing any PHP code contained within the remote resource. This type of vulnerability falls under the Common Weakness Enumeration category CWE-98, which specifically addresses improper file inclusion vulnerabilities where applications include files based on user-provided input without proper sanitization. The vulnerability operates at the application layer and can be exploited through simple HTTP requests, making it particularly dangerous as it requires minimal technical expertise to execute.
The operational impact of this vulnerability extends 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, or even use the compromised server as a launch point for further attacks within the network. The vulnerability affects the confidentiality, integrity, and availability of the QuickBlogger application and the underlying system. According to the MITRE ATT&CK framework, this vulnerability maps to the T1059.007 technique for command and scripting interpreter, specifically PHP, and the T1190 technique for exploit public-facing application, as it allows attackers to leverage publicly accessible web interfaces to gain system access. The attack surface is particularly concerning given that QuickBlogger was a widely used blogging platform, meaning that exploitation could potentially affect numerous websites simultaneously.
Mitigation strategies for this vulnerability require immediate implementation of input validation and sanitization measures. The most effective approach involves removing or disabling the use of user-controllable parameters in file inclusion operations entirely, instead implementing a whitelist of allowed values or using a secure configuration that prevents remote file inclusion. Organizations should also apply the latest security patches provided by the QuickBlogger developers, as this vulnerability was addressed in subsequent releases. Additional protective measures include implementing web application firewalls that can detect and block suspicious file inclusion patterns, configuring proper input validation at the application level, and conducting regular security audits of web applications to identify similar vulnerabilities. The remediation process should also involve network segmentation and access controls to limit the potential impact of successful exploitation attempts.