CVE-2006-5423 in Lou Portail
Summary
by MITRE
PHP remote file inclusion vulnerability in admin/admin_module.php in Lou Portail 1.4.1, and possibly earlier, allows remote attackers to execute arbitrary PHP code via a URL in the g_admin_rep parameter. NOTE: the provenance of this information is unknown; the details are obtained from third party information.
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Analysis
by VulDB Data Team • 04/25/2026
The vulnerability identified as CVE-2006-5423 represents a critical remote file inclusion flaw in the Lou Portail content management system version 1.4.1 and potentially earlier releases. This vulnerability resides within the admin/admin_module.php file and specifically targets the g_admin_rep parameter which is susceptible to manipulation by remote attackers. The flaw enables malicious actors to inject and execute arbitrary PHP code on the target system, fundamentally compromising the security posture of affected installations. Such vulnerabilities are particularly dangerous because they allow attackers to gain unauthorized access to server resources and potentially escalate their privileges within the compromised environment.
The technical nature of this vulnerability aligns with CWE-88, which describes improper neutralization of special elements used in an SQL command, and more specifically relates to CWE-94, which encompasses the execution of arbitrary code or commands. The flaw operates through a classic remote file inclusion attack vector where an attacker can manipulate the g_admin_rep parameter to reference external malicious files. When the vulnerable application processes this parameter without proper validation or sanitization, it inadvertently includes and executes the attacker-controlled code from the remote location. This mechanism bypasses normal access controls and allows unauthorized code execution with the privileges of the web application process.
The operational impact of this vulnerability extends beyond simple code execution to encompass complete system compromise and potential data breaches. Attackers can leverage this vulnerability to upload backdoors, steal sensitive information, modify content, or establish persistent access to the compromised system. The remote nature of the attack means that exploitation can occur from anywhere on the internet without requiring physical access to the target network. This vulnerability also aligns with several techniques documented in the MITRE ATT&CK framework under the T1190 category for exploitation of remote services and T1059 for execution through scripting languages. The lack of input validation in the parameter processing creates an attack surface that can be exploited by automated scanning tools, making affected systems particularly vulnerable to mass exploitation campaigns.
Mitigation strategies for this vulnerability should prioritize immediate patching of the Lou Portail application to the latest available version that addresses this specific flaw. Organizations should implement proper input validation and sanitization measures to prevent any user-controllable parameters from being directly used in file inclusion operations. The principle of least privilege should be enforced by ensuring that web applications run with minimal required permissions and that file inclusion operations are restricted to predefined safe locations. Additionally, network-level protections such as firewalls and intrusion detection systems can help detect and block suspicious traffic patterns associated with exploitation attempts. Regular security assessments and vulnerability scanning should be conducted to identify similar flaws in other applications and systems within the organization's infrastructure.