CVE-2003-1237 in WWWBoard
Summary
by MITRE
Cross-site scripting vulnerability (XSS) in WWWBoard 2.0A2.1 and earlier allows remote attackers to inject arbitrary HTML or web script via a message post.
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Analysis
by VulDB Data Team • 07/16/2025
The vulnerability described in CVE-2003-1237 represents a classic cross-site scripting flaw affecting WWWBoard version 2.0A2.1 and earlier implementations. This type of vulnerability falls under CWE-79 which specifically addresses improper neutralization of input during web page generation, making it a fundamental web application security weakness that has persisted across decades of software development. The vulnerability exists within the message posting functionality of the WWWBoard platform, where user input is not properly sanitized before being rendered back to other users browsing the forum or bulletin board interface.
The technical mechanism of this XSS vulnerability allows remote attackers to inject malicious HTML or JavaScript code directly into message posts that are subsequently displayed to other users. When victims view these posts, their browsers execute the injected scripts in the context of the vulnerable application, potentially leading to session hijacking, credential theft, or redirection to malicious sites. The flaw occurs because the application fails to properly encode or escape special characters in user-supplied content before rendering it within HTML contexts, creating an opening for attackers to inject executable code that leverages the trust relationship between the victim's browser and the vulnerable web application.
The operational impact of this vulnerability extends beyond simple data theft or defacement, as it can enable sophisticated attack chains that leverage the victim's authenticated session within the WWWBoard environment. Attackers can craft malicious posts that steal cookies, redirect users to phishing sites, or even inject scripts that modify content displayed to other users. This vulnerability particularly affects collaborative environments where users trust the content posted by others, making the attack surface more expansive than typical XSS scenarios in single-user applications. The vulnerability affects the core functionality of the bulletin board system, potentially compromising the integrity of discussions and user data.
Organizations should implement comprehensive input validation and output encoding mechanisms to address this vulnerability, following security best practices outlined in the OWASP Top Ten and NIST cybersecurity guidelines. The recommended mitigations include implementing strict content sanitization for all user-generated content, employing proper HTML escaping routines, and deploying web application firewalls to detect and block suspicious input patterns. Additionally, organizations should consider implementing CSP (Content Security Policy) headers to limit script execution contexts and reduce the potential impact of successful XSS attacks. The vulnerability demonstrates the critical importance of input validation in web applications and serves as a reminder that even legacy software systems can contain fundamental security flaws that require immediate attention and remediation.