CVE-2007-3590 in b1gBB
Summary
by MITRE
Cross-site scripting (XSS) vulnerability in visitenkarte.php in b1gBB 2.24.0 allows remote attackers to inject arbitrary web script or HTML via the user parameter.
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Analysis
by VulDB Data Team • 06/14/2025
The CVE-2007-3590 vulnerability represents a classic cross-site scripting flaw in the b1gBB 2.24.0 bulletin board software, specifically within the visitenkarte.php component. This vulnerability arises from inadequate input validation and output sanitization mechanisms that fail to properly escape or filter user-supplied data before rendering it within web pages. The affected parameter named "user" serves as the primary attack vector, allowing malicious actors to inject arbitrary HTML or JavaScript code that executes in the context of other users' browsers when they view the compromised page.
This vulnerability falls under the CWE-79 category of Cross-Site Scripting, which is classified as a critical security weakness in web applications. The flaw enables attackers to perform session hijacking, defacement of web pages, and redirection to malicious sites. The attack occurs when an attacker crafts a malicious URL containing script code within the user parameter, which gets stored or processed by the vulnerable application without proper sanitization. When other users access the visitenkarte.php page with the malicious input, their browsers execute the injected script in the context of the vulnerable application, potentially compromising their sessions or exposing sensitive information.
The operational impact of this vulnerability extends beyond simple script injection, as it can lead to complete compromise of user sessions and potential data breaches. Attackers can exploit this weakness to steal authentication cookies, modify user permissions, or redirect victims to phishing sites designed to capture credentials. The vulnerability affects the confidentiality, integrity, and availability of the web application by allowing unauthorized code execution in users' browsers. This type of vulnerability is particularly dangerous in bulletin board systems where users frequently interact with content from other users, creating an environment where malicious scripts can propagate through the community.
Mitigation strategies for CVE-2007-3590 involve implementing proper input validation and output encoding mechanisms. The primary defense includes sanitizing all user inputs through proper escaping techniques before rendering them in web pages, particularly for HTML, JavaScript, and URL contexts. Developers should implement Content Security Policy headers to limit script execution, employ proper parameter validation to reject malicious input patterns, and update to patched versions of the b1gBB software. Additionally, organizations should conduct regular security assessments, implement web application firewalls, and establish secure coding practices that align with OWASP Top Ten recommendations. The vulnerability demonstrates the critical importance of input validation and output encoding in preventing XSS attacks, which remain one of the most prevalent web application security risks according to industry security standards and threat intelligence reports.