CVE-2002-1662 in Site Server
Summary
by MITRE
Multiple cross-site scripting (XSS) vulnerabilities in Mambo Site Server 4.0.11 allow remote attackers to execute arbitrary script on other clients via (1) search.php and (2) the "Your name" field during account registration.
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Analysis
by VulDB Data Team • 09/02/2025
The vulnerability identified as CVE-2002-1662 represents a critical security flaw in Mambo Site Server version 4.0.11 that exposes the system to multiple cross-site scripting attacks. This vulnerability specifically affects two distinct entry points within the web application framework, creating potential pathways for malicious actors to inject and execute arbitrary client-side scripts in the context of other users' browsers. The presence of XSS vulnerabilities in content management systems of this era was particularly concerning as these platforms often served as central hubs for web content delivery and user interaction.
The technical implementation of this vulnerability stems from inadequate input validation and output sanitization within the Mambo Site Server application. The first attack vector involves the search.php script which fails to properly sanitize user-supplied search parameters before incorporating them into web page responses. The second vector targets the account registration process where the "Your name" field does not adequately filter or escape special characters that could be interpreted as HTML or JavaScript code. Both scenarios demonstrate a classic lack of proper context-aware output encoding that violates fundamental secure coding principles and aligns with CWE-79 which specifically addresses cross-site scripting vulnerabilities. The vulnerability essentially allows attackers to craft malicious payloads that get executed in the browsers of unsuspecting users who visit affected pages or interact with the registration functionality.
The operational impact of this vulnerability extends beyond simple script execution as it creates a persistent threat vector that can be exploited for various malicious purposes. Attackers can leverage these XSS flaws to steal session cookies, redirect users to phishing sites, deface web pages, or even establish persistent backdoors through more sophisticated attack chains. The remote execution capability means that attackers do not require physical access to the system or direct network connectivity to the target server, making these vulnerabilities particularly dangerous in public-facing web applications. Users who engage with the search functionality or register new accounts become potential victims, creating a broad attack surface that could compromise multiple users simultaneously. This vulnerability directly maps to tactics described in the MITRE ATT&CK framework under the T1566 category for credential access through social engineering and T1584 for infrastructure compromise through web application attacks.
Mitigation strategies for CVE-2002-1662 require immediate implementation of input validation and output encoding measures across all user-supplied data entry points. Organizations should implement proper context-aware output encoding for all dynamic content generated by the application, ensuring that special characters are appropriately escaped based on the target execution context. The fix involves modifying the search.php script to sanitize all input parameters and implementing comprehensive input validation for the registration form, particularly the name field. Additionally, implementing proper HTTP headers such as Content Security Policy can provide an additional layer of protection against XSS attacks by restricting script execution sources. Regular security audits and code reviews should be conducted to identify similar vulnerabilities in other application components, while also ensuring that the Mambo Site Server is updated to a patched version that addresses these specific XSS vulnerabilities. The remediation process should follow secure coding guidelines and best practices established by organizations such as OWASP to prevent similar issues in future development cycles.