CVE-2006-4593 in SoftBB
Summary
by MITRE
Cross-site scripting (XSS) vulnerability in index.php in SoftBB 0.1 and earlier allows remote attackers to inject arbitrary web script or HTML via the page parameter.
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Analysis
by VulDB Data Team • 08/03/2018
The CVE-2006-4593 vulnerability represents a critical cross-site scripting flaw identified in SoftBB version 0.1 and earlier releases. This vulnerability resides within the index.php script and specifically targets the page parameter handling mechanism. The flaw enables remote attackers to execute malicious web scripts or HTML code within the context of other users' browsers who interact with the vulnerable forum software. Such vulnerabilities are particularly dangerous as they can be exploited to hijack user sessions, deface websites, or redirect users to malicious sites.
The technical exploitation of this vulnerability stems from insufficient input validation and output sanitization within the SoftBB application. When the page parameter is processed without proper sanitization, attacker-controlled data can be directly embedded into the web page response. This creates an environment where malicious scripts can execute in the victim's browser context, bypassing normal security restrictions. The vulnerability aligns with CWE-79 which specifically addresses cross-site scripting flaws in web applications. The flaw demonstrates poor input validation practices where user-supplied data flows directly into the application's output without adequate encoding or sanitization.
The operational impact of CVE-2006-4593 extends beyond simple data theft or defacement. Attackers can leverage this vulnerability to establish persistent malicious presence within the forum environment, potentially compromising multiple user accounts and undermining the integrity of the entire platform. Users who browse the affected forum may unknowingly execute malicious code that could harvest cookies, redirect them to phishing sites, or perform unauthorized actions on their behalf. The vulnerability affects the fundamental security model of web applications by allowing attackers to inject code that executes in the context of legitimate users, making it particularly dangerous for community-driven platforms like forums where user interaction is high.
Mitigation strategies for this vulnerability must address both immediate remediation and long-term security architecture improvements. The most effective immediate solution involves implementing proper input validation and output encoding mechanisms, specifically sanitizing all user-supplied parameters including the page parameter before they are processed or rendered in web responses. Organizations should adopt the principle of least privilege in parameter handling and implement Content Security Policy headers to limit script execution. Additionally, regular security audits and code reviews should be conducted to identify similar input validation gaps. The vulnerability demonstrates the importance of following secure coding practices as outlined in OWASP Top 10 and ATT&CK framework techniques related to web application attacks. Regular updates and patches should be maintained to address such vulnerabilities in legacy software systems.