CVE-2006-5799 in xenis.creator CMS
Summary
by MITRE
Multiple cross-site scripting (XSS) vulnerabilities in default.asp in xenis.creator CMS allow remote attackers to inject arbitrary web script or HTML via the (1) contid or (2) search parameters.
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Analysis
by VulDB Data Team • 04/26/2026
The vulnerability identified as CVE-2006-5799 represents a critical security flaw in the xenis.creator content management system where multiple cross-site scripting vulnerabilities exist in the default.asp file. This vulnerability specifically affects the handling of user input parameters contid and search, creating exploitable entry points for remote attackers to inject malicious web scripts or HTML content into the application's response. The flaw demonstrates a classic input validation weakness that allows malicious actors to manipulate the application's behavior through crafted HTTP requests.
The technical implementation of this vulnerability stems from inadequate sanitization of user-supplied input parameters within the web application's processing pipeline. When the application processes the contid and search parameters without proper validation or encoding mechanisms, it fails to distinguish between legitimate user input and potentially malicious script code. This lack of input filtering creates an environment where attacker-controlled data can be executed within the context of other users' browsers, violating the fundamental principle of web application security that user input should never be trusted or directly rendered without proper sanitization.
From an operational impact perspective, this vulnerability poses significant risks to the confidentiality, integrity, and availability of the affected system. Remote attackers can leverage these XSS flaws to steal session cookies, perform unauthorized actions on behalf of authenticated users, redirect victims to malicious websites, or deface the website content. The vulnerability affects the entire user base that interacts with the CMS, potentially compromising sensitive data and leading to further escalation opportunities such as privilege escalation or lateral movement within the network. The impact extends beyond immediate data theft to include potential reputational damage and regulatory compliance violations.
Security practitioners should consider this vulnerability in the context of established frameworks such as CWE-79 which specifically addresses Cross-Site Scripting flaws, and ATT&CK technique T1566 which covers social engineering attacks through malicious web content. The remediation strategy must include implementing proper input validation and output encoding mechanisms, specifically employing context-appropriate escaping techniques for HTML, JavaScript, and URL contexts. Organizations should deploy web application firewalls, implement Content Security Policy headers, and conduct regular security testing to identify similar vulnerabilities. Additionally, the vulnerability highlights the importance of secure coding practices and input sanitization as fundamental security controls that should be integrated into all phases of software development lifecycle processes.
The vulnerability demonstrates how legacy applications often lack proper security controls that are now considered standard practice in modern web development. Organizations utilizing older CMS platforms should prioritize immediate remediation through patching or implementing compensating controls while planning for system modernization to address similar architectural weaknesses. The attack surface expansion through these parameters illustrates the critical need for comprehensive security testing that includes parameter validation across all application entry points rather than relying solely on perimeter defenses.