CVE-2006-5800 in xenis.creator CMS
Summary
by MITRE
Cross-site scripting (XSS) vulnerability in default.asp in xenis.creator CMS allows remote attackers to inject arbitrary web script or HTML via the nav parameter. 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 • 04/26/2026
The vulnerability identified as CVE-2006-5800 represents a classic cross-site scripting flaw within the xenis.creator content management system, specifically affecting the default.asp component. This type of vulnerability falls under the CWE-79 category of Cross-Site Scripting, which is one of the most prevalent and dangerous web application security weaknesses. The vulnerability manifests in the navigation parameter handling mechanism, where the application fails to properly sanitize user input before incorporating it into dynamically generated web content. Attackers can exploit this weakness by crafting malicious payloads in the nav parameter that, when processed by the vulnerable application, get executed in the context of other users' browsers.
The technical implementation of this vulnerability stems from inadequate input validation and output encoding practices within the xenis.creator CMS framework. When the default.asp page processes the nav parameter, it directly incorporates user-supplied data into HTML output without appropriate sanitization or encoding measures. This allows attackers to inject malicious scripts that execute in the victim's browser when they navigate to pages that utilize the vulnerable parameter. The attack vector is particularly concerning because it requires no authentication and can be executed through simple web requests, making it highly accessible to remote attackers. The vulnerability exists at the application layer and specifically impacts the server-side script processing functionality.
From an operational standpoint, this XSS vulnerability presents significant risks to both the application integrity and user security. Successful exploitation could enable attackers to steal session cookies, perform unauthorized actions on behalf of users, redirect victims to malicious websites, or even deface the website content. The impact extends beyond simple data theft to potentially enabling more sophisticated attacks such as credential harvesting or privilege escalation within the application. Since the vulnerability affects a core navigation component, it could be leveraged to compromise multiple pages and functionalities throughout the CMS, potentially providing attackers with broader access to the system's administrative capabilities. This makes the vulnerability particularly dangerous in environments where the CMS manages sensitive content or user data.
Mitigation strategies for CVE-2006-5800 should focus on implementing proper input validation and output encoding mechanisms. Organizations should ensure that all user-supplied input is sanitized before being processed or displayed, particularly in navigation parameters and other dynamic content areas. The recommended approach involves implementing strict input validation that rejects or encodes potentially dangerous characters and sequences. Additionally, developers should adopt secure coding practices such as using context-specific output encoding when rendering user data in HTML contexts. The implementation of Content Security Policy headers can provide an additional layer of defense against XSS attacks. According to ATT&CK framework, this vulnerability maps to T1059.007 for script execution and T1566 for social engineering techniques. Organizations should also consider implementing web application firewalls and regularly updating their CMS components to address known vulnerabilities. The remediation process requires immediate attention and should be prioritized alongside other critical security patches to prevent exploitation by threat actors who may be actively scanning for such vulnerabilities.