CVE-2006-4293 in cPanel
Summary
by MITRE
Multiple cross-site scripting (XSS) vulnerabilities in cPanel 10 allow remote attackers to inject arbitrary web script or HTML via the (1) dir parameter in dohtaccess.html, or the (2) file parameter in (a) editit.html or (b) showfile.html.
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Analysis
by VulDB Data Team • 09/16/2025
The CVE-2006-4293 vulnerability represents a critical cross-site scripting weakness in cPanel version 10 that exposes web applications to remote code execution through malicious script injection. This vulnerability specifically targets the administrative interface of cPanel, a widely used web hosting control panel that manages multiple hosting accounts and server configurations. The flaw exists in the handling of user-supplied input parameters within three distinct HTML pages of the cPanel interface, making it particularly dangerous as it can be exploited through multiple attack vectors. The vulnerability affects the core functionality of cPanel's file management and directory access features, which are fundamental components for system administrators and users managing web content.
The technical implementation of this vulnerability stems from inadequate input validation and output encoding within the cPanel web interface. Attackers can exploit this weakness by manipulating the dir parameter in the dohtaccess.html page or by injecting malicious content through the file parameter in either editit.html or showfile.html. These parameters are processed without proper sanitization, allowing attackers to inject arbitrary HTML and JavaScript code that executes in the context of other users' browsers. The vulnerability is classified as a classic reflected XSS issue where malicious payloads are reflected back to users through the web application's response, bypassing normal security mechanisms that would typically prevent such code execution.
The operational impact of this vulnerability extends beyond simple script injection, as it provides attackers with the ability to compromise user sessions, steal sensitive information, and potentially gain unauthorized access to hosting accounts. When exploited successfully, the XSS payload can access session cookies, modify user interface elements, redirect users to malicious websites, or even execute commands on behalf of the victim. This represents a significant threat to web hosting environments where multiple users share the same control panel interface, as a successful attack on one user could potentially compromise others within the same hosting environment. The vulnerability undermines the trust model of the control panel system, as users cannot be certain that the interface they interact with is free from malicious code injection.
Security professionals should consider this vulnerability in the context of the CWE-79 weakness category, which specifically addresses cross-site scripting flaws in software applications. The ATT&CK framework categorizes this as a technique for code injection and privilege escalation through web application vulnerabilities. Organizations should implement immediate mitigations including input validation on all parameters, output encoding for dynamic content, and proper sanitization of user-supplied data. The most effective approach involves updating to patched versions of cPanel, implementing web application firewalls, and conducting regular security assessments of administrative interfaces. Additionally, organizations should enforce strict access controls and monitor for suspicious activity in their hosting environments, as this vulnerability could be exploited to establish persistent access to compromised accounts and potentially escalate privileges within the hosting infrastructure.