CVE-2009-4693 in MiniCWB
Summary
by MITRE
Multiple PHP remote file inclusion vulnerabilities in GraFX MiniCWB 2.3.0 allow remote attackers to execute arbitrary PHP code via a URL in the LANG parameter to (1) en.inc.php, (2) hu.inc.php, (3) no.inc.php, (4) ro.inc.php, and (5) ru.inc.php in language/.
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Analysis
by VulDB Data Team • 05/02/2026
The CVE-2009-4693 vulnerability represents a critical remote file inclusion flaw affecting GraFX MiniCWB version 2.3.0, demonstrating a classic security weakness that has persisted across numerous web applications. This vulnerability resides in the language directory of the application, specifically targeting five distinct include files including en.inc.php, hu.inc.php, no.inc.php, ro.inc.php, and ru.inc.php, all of which are susceptible to manipulation through the LANG parameter. The flaw arises from inadequate input validation and sanitization practices within the application's language handling mechanism, creating an exploitable pathway for malicious actors to inject and execute arbitrary PHP code on the target server.
The technical nature of this vulnerability aligns with CWE-88, which describes improper neutralization of argument delimiters in a command or injection context, and more specifically with CWE-94, which addresses the execution of code from untrusted inputs. The vulnerability operates by allowing attackers to manipulate the LANG parameter to include external URLs containing malicious PHP code, which then gets executed on the server side. This type of vulnerability is classified as a remote code execution flaw under the ATT&CK framework, specifically mapping to the T1059.007 technique for command and script injection. The attack vector is particularly dangerous because it requires no authentication and can be exploited through simple HTTP requests, making it highly attractive to automated attack tools and malicious actors seeking to compromise web servers.
The operational impact of this vulnerability extends far beyond simple code execution, as it provides attackers with complete control over the affected server. Successful exploitation can lead to data breaches, server compromise, and potential lateral movement within network environments. The vulnerability affects the core functionality of the application's internationalization system, meaning that any user interaction with language selection features could serve as an attack surface. Organizations running GraFX MiniCWB 2.3.0 are at significant risk of having their web servers compromised, potentially leading to unauthorized access to sensitive data, modification of web content, or complete system takeover. The vulnerability's impact is exacerbated by the fact that it affects multiple language files, increasing the attack surface and making it more difficult for administrators to secure all potential entry points.
Mitigation strategies for CVE-2009-4693 should focus on immediate patching of the affected application to version 2.3.1 or later, which contains the necessary security fixes. Additionally, administrators should implement input validation and sanitization measures to prevent unauthorized file inclusion attempts, including the use of allowlists for valid language parameters and proper URL validation. The implementation of web application firewalls can provide additional protection layers against such attacks, while regular security audits and penetration testing should be conducted to identify similar vulnerabilities in other applications. Organizations should also consider implementing the principle of least privilege for web server processes and ensure that file inclusion operations are properly restricted to prevent arbitrary code execution. The vulnerability serves as a reminder of the importance of secure coding practices, particularly around input validation and the proper handling of user-supplied data in web applications.