CVE-2009-3060 in JBoard
Summary
by MITRE
Multiple cross-site scripting (XSS) vulnerabilities in Joker Board (aka JBoard) 2.0 and earlier allow remote attackers to inject arbitrary web script or HTML via (1) the notice parameter to editform.php, (2) the edit_user_message parameter to core/edit_user_message.php, or (3) the user_title parameter to inc/head.inc.php, reachable through any PHP script.
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Analysis
by VulDB Data Team • 01/19/2019
The CVE-2009-3060 vulnerability represents a critical cross-site scripting flaw affecting Joker Board version 2.0 and earlier implementations. This vulnerability resides within the web application's input validation mechanisms, specifically targeting three distinct entry points that process user-supplied data. The flaw permits remote attackers to execute malicious scripts within the context of other users' browsers, creating a significant security risk for any organization utilizing this bulletin board system. The vulnerability affects the core functionality of the application by failing to properly sanitize user input before rendering it in web pages, thereby creating persistent XSS attack vectors that can be exploited across multiple components of the system.
The technical exploitation of this vulnerability occurs through three primary attack vectors that correspond to specific PHP script endpoints. The first vector targets the notice parameter within editform.php, where user input is directly incorporated into web page output without proper sanitization or encoding. The second vector exploits the edit_user_message parameter in core/edit_user_message.php, while the third targets the user_title parameter in inc/head.inc.php, which is accessible through any PHP script within the application. These attack vectors demonstrate a systemic failure in the application's data handling architecture, where input validation is inconsistently applied across different modules. The vulnerability is classified under CWE-79 as a failure to sanitize user input, specifically manifesting as reflected and stored cross-site scripting flaws that can persist across multiple user sessions.
The operational impact of CVE-2009-3060 extends beyond simple data theft, as successful exploitation can lead to complete session hijacking, credential theft, and unauthorized administrative access. Attackers can craft malicious payloads that redirect users to phishing sites, steal session cookies, or inject malicious code that persists across user interactions. The vulnerability's reach is particularly concerning as it affects any PHP script within the application, indicating a fundamental flaw in the application's architecture that fails to implement consistent input validation across all components. This creates a persistent threat vector that can be exploited by attackers with minimal technical expertise, as the vulnerability exists in core application functionality rather than requiring complex multi-stage attacks. The implications for user privacy and system integrity are severe, as the vulnerability allows for the execution of arbitrary code within the context of authenticated users.
Mitigation strategies for CVE-2009-3060 must address the root cause of insufficient input validation and implement comprehensive sanitization measures across all application components. The primary recommendation involves implementing strict input validation and output encoding for all user-supplied data, particularly at the three identified attack vectors. Organizations should deploy proper HTML escaping mechanisms for all dynamic content rendered to users, ensuring that special characters are properly encoded to prevent script execution. The solution must include input sanitization at multiple layers, with specific focus on the notice parameter in editform.php, the edit_user_message parameter in core/edit_user_message.php, and the user_title parameter in inc/head.inc.php. Additionally, implementing a Content Security Policy (CSP) framework can provide an additional layer of protection against XSS attacks by restricting the sources from which scripts can be loaded and executed. Security measures should also include regular security audits to identify similar vulnerabilities in other application components, as the presence of this vulnerability suggests a broader architectural weakness that may affect other parts of the system. The remediation process should follow ATT&CK framework guidance for mitigating web application vulnerabilities, emphasizing the importance of input validation, output encoding, and secure coding practices to prevent similar issues from occurring in future development cycles.