CVE-2009-2330 in CMS Chainuk
Summary
by MITRE
Cross-site scripting (XSS) vulnerability in admin/admin_menu.php in CMS Chainuk 1.2 and earlier allows remote attackers to inject arbitrary web script or HTML via the menu parameter.
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Analysis
by VulDB Data Team • 03/13/2025
The CVE-2009-2330 vulnerability represents a critical cross-site scripting flaw within the CMS Chainuk 1.2 and earlier versions, specifically affecting the admin/admin_menu.php component. This vulnerability exposes the administrative interface to malicious script injection attacks that can be executed by remote attackers without authentication. The flaw manifests when the application fails to properly sanitize user input passed through the menu parameter, creating an avenue for attackers to inject arbitrary web scripts or HTML content directly into the administrative interface.
This vulnerability falls under the CWE-79 category of Cross-Site Scripting, which is classified as a fundamental web application security weakness that occurs when an application includes untrusted data in web pages without proper validation or escaping. The specific implementation flaw in CMS Chainuk demonstrates poor input validation practices where the menu parameter is directly incorporated into the web response without adequate sanitization or encoding mechanisms. Attackers can exploit this by crafting malicious payloads that when executed in the context of an authenticated administrator's browser session, can perform unauthorized actions or extract sensitive information.
The operational impact of this vulnerability extends beyond simple script execution, as it provides attackers with potential access to the administrative interface of the CMS system. When an administrator visits a page containing the malicious payload, the injected scripts execute in their browser context with full administrative privileges, enabling attackers to modify content, create new user accounts, access sensitive data, or even install malware. The vulnerability is particularly dangerous because it requires no authentication to exploit, making it a prime target for automated attacks that can scan for vulnerable systems and deploy malicious payloads at scale. This represents a significant risk to organizations relying on CMS Chainuk for their web presence, as successful exploitation can lead to complete system compromise.
Mitigation strategies for CVE-2009-2330 should prioritize immediate patching of the CMS Chainuk software to version 1.3 or later, which contains the necessary input validation fixes. Organizations should implement proper output encoding and input sanitization measures, ensuring that all user-supplied data passed to the menu parameter is properly escaped before rendering in web pages. The implementation of Content Security Policy headers can provide additional protection against script execution, while regular security audits and input validation testing should be conducted to prevent similar vulnerabilities. This vulnerability aligns with ATT&CK technique T1566.001 for initial access through web application attacks and demonstrates the importance of proper input validation as outlined in the OWASP Top Ten security principles. Organizations should also consider implementing web application firewalls and monitoring for suspicious parameter values to detect potential exploitation attempts.