CVE-2006-6124 in SeleniumServer Web Server
Summary
by MITRE
Cross-site scripting (XSS) vulnerability in SeleniumServer Web Server 1.0 allows remote attackers to inject arbitrary web script or HTML via unspecified vectors. NOTE: the provenance of this information is unknown; the details are obtained solely from third party information.
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Analysis
by VulDB Data Team • 04/29/2026
The vulnerability identified as CVE-2006-6124 represents a cross-site scripting flaw within the SeleniumServer Web Server version 1.0, which constitutes a critical security weakness in web application testing infrastructure. This vulnerability exists within the core web server component that SeleniumServer utilizes for hosting and managing test environments, creating a potential attack surface that malicious actors can exploit to compromise the security of web applications under test. The unspecified vectors suggest that the vulnerability could manifest through multiple entry points within the web server's request handling mechanisms, making it particularly concerning for security professionals who must account for all possible attack vectors.
The technical implementation of this XSS vulnerability stems from inadequate input validation and output encoding within the SeleniumServer's web interface, which processes user-supplied data without proper sanitization before rendering it in web responses. This flaw allows attackers to inject malicious scripts that execute within the context of legitimate users' browsers, potentially enabling session hijacking, credential theft, or redirection to malicious sites. The vulnerability operates at the application layer and can be exploited through various methods including but not limited to form submissions, URL parameters, or HTTP headers that are processed by the web server component. According to CWE classification, this represents a CWE-79: Improper Neutralization of Input During Web Page Generation, which specifically addresses the failure to properly encode or escape user-controllable data before incorporating it into web page content.
The operational impact of this vulnerability extends beyond simple script injection, as it can significantly compromise the integrity of automated testing environments that rely on SeleniumServer for web application validation. Attackers could potentially use this vulnerability to manipulate test results, gain unauthorized access to sensitive test data, or even escalate privileges within the testing infrastructure. The vulnerability particularly affects organizations that depend on Selenium for continuous integration testing, as compromised test environments could lead to undetected security flaws in production applications. From an ATT&CK framework perspective, this vulnerability maps to T1566: Phishing and T1071.004: Application Layer Protocol: Web Protocols, as it enables attackers to craft malicious web content that can be executed in the context of legitimate users. The attack surface is further expanded when considering that SeleniumServer is often deployed in development and testing environments where security controls may be less stringent than in production systems.
Mitigation strategies for this vulnerability require immediate attention through patching or upgrading to versions that address the XSS flaw, as no reliable workarounds exist for this specific implementation. Organizations should implement comprehensive input validation at multiple layers including the web server, application logic, and output encoding mechanisms to prevent similar vulnerabilities from manifesting in other components. Network segmentation and access controls should be implemented to limit exposure of the SeleniumServer web interface to trusted users only. Security monitoring should include detection of suspicious script injection attempts, and regular security assessments should be conducted to identify similar vulnerabilities in web applications and testing infrastructure. The vulnerability highlights the critical importance of secure coding practices in all components of web application testing frameworks, particularly those handling user input from potentially untrusted sources.