CVE-2006-5837 in SimpleChat
Summary
by MITRE
Static code injection vulnerability in chat_panel.php in the SimpleChat 1.0.0 module for iWare Professional CMS allows remote attackers to inject arbitrary PHP code into chat_log.php via the msg parameter.
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Analysis
by VulDB Data Team • 04/27/2026
The vulnerability identified as CVE-2006-5837 represents a critical static code injection flaw within the SimpleChat 1.0.0 module of the iWare Professional CMS platform. This security weakness specifically affects the chat_panel.php component which fails to properly sanitize user input before processing it into the chat_log.php file. The vulnerability stems from inadequate input validation mechanisms that permit malicious actors to inject arbitrary PHP code through the msg parameter, creating a persistent threat vector that can be exploited remotely without authentication requirements.
The technical exploitation of this vulnerability occurs through a classic parameter manipulation attack where an attacker crafts malicious input containing PHP code within the msg parameter of the chat_panel.php script. When this input is processed and stored in chat_log.php, the injected code executes within the context of the web server, potentially allowing full remote code execution capabilities. This type of vulnerability falls under CWE-94, which specifically addresses "Improper Control of Generation of Code ('Code Injection')" and represents a fundamental failure in input sanitization and output encoding practices. The flaw demonstrates poor security design principles where user-supplied data is directly incorporated into server-side code execution without proper validation or escaping mechanisms.
The operational impact of CVE-2006-5837 extends beyond simple code injection to encompass complete system compromise potential. An attacker who successfully exploits this vulnerability can execute arbitrary commands on the affected server, potentially gaining access to sensitive data, modifying system configurations, or establishing persistent backdoors. The vulnerability affects the entire iWare Professional CMS ecosystem, making it particularly dangerous for organizations that rely on this platform for their web applications. The remote nature of the attack means that threat actors can exploit this weakness from anywhere on the internet without requiring physical access to the target system, significantly expanding the attack surface and reducing the effectiveness of traditional network security controls.
Organizations affected by this vulnerability should implement immediate mitigations including input validation and sanitization of all user-supplied parameters, particularly those that are directly incorporated into server-side code execution contexts. The recommended approach involves implementing proper parameter escaping mechanisms and adopting a whitelist-based input validation strategy that only accepts known good characters and patterns. Security practitioners should also consider implementing web application firewalls to detect and block suspicious parameter values that may indicate attempted exploitation. This vulnerability aligns with ATT&CK technique T1059.007 for "Command and Scripting Interpreter: PowerShell" and T1566.001 for "Phishing: Spearphishing Attachment" as attackers may use this vulnerability to establish persistent access and execute malicious payloads within the target environment. Additionally, regular security assessments and code reviews should be conducted to identify similar injection vulnerabilities in other components of the CMS and prevent similar weaknesses from being introduced in future development cycles.