CVE-2008-4349 in Paranews
Summary
by MITRE
Multiple cross-site scripting (XSS) vulnerabilities in news.php in s0nic Paranews 3.4 allow remote attackers to inject arbitrary web script or HTML via the (1) id or (2) page parameter in a details action.
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Analysis
by VulDB Data Team • 09/06/2025
The vulnerability described in CVE-2008-4349 represents a critical cross-site scripting flaw in the s0nic Paranews 3.4 content management system. This vulnerability exists within the news.php script and specifically affects the handling of user input parameters during the details action. The flaw allows remote attackers to execute malicious scripts in the context of other users' browsers, potentially leading to session hijacking, credential theft, or unauthorized actions within the affected application. The vulnerability manifests through two distinct input vectors: the id parameter and the page parameter, both of which are processed without adequate input sanitization or output encoding.
From a technical perspective, this vulnerability falls under CWE-79 which defines cross-site scripting as the failure to properly escape output or validate input in web applications. The flaw occurs because the application directly incorporates user-supplied data into web pages without proper sanitization mechanisms. When users submit values through the id or page parameters, these inputs are reflected back to the browser without appropriate encoding or filtering, creating an environment where malicious JavaScript code can be executed. The vulnerability is particularly dangerous because it affects the core news display functionality, meaning any user who views affected content could be compromised.
The operational impact of this vulnerability extends beyond simple script execution, as it can be leveraged for more sophisticated attacks within the context of the compromised user's session. Attackers could potentially steal session cookies, redirect users to malicious sites, or inject persistent XSS payloads that would affect all users until the vulnerability is patched. The attack requires no special privileges or authentication, making it particularly dangerous as it can be exploited by anyone who can access the affected web application. This vulnerability represents a significant risk to user privacy and application security, especially in environments where users may have elevated privileges or access to sensitive information through the news system.
Mitigation strategies for this vulnerability should focus on implementing comprehensive input validation and output encoding practices. The primary remediation involves sanitizing all user inputs through proper parameter validation and implementing context-appropriate output encoding before rendering any user-supplied data. Security measures should include the use of parameterized queries, input filtering mechanisms, and proper HTML escaping techniques to prevent malicious code execution. Organizations should also implement web application firewalls and security monitoring systems to detect and prevent exploitation attempts. The vulnerability highlights the importance of following secure coding practices as outlined in the OWASP Top Ten and should be addressed through comprehensive security testing including dynamic analysis and manual code review processes. Additionally, regular security updates and vulnerability assessments should be conducted to ensure that similar issues do not persist in other components of the web application.