CVE-2005-3078 in PunBB
Summary
by MITRE
Cross-site scripting (XSS) vulnerability in PunBB before 1.2.8 allows remote attackers to inject arbitrary web script or HTML via the "forgotten e-mail" feature.
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Analysis
by VulDB Data Team • 06/09/2019
The CVE-2005-3078 vulnerability represents a classic cross-site scripting flaw in the PunBB bulletin board software that existed prior to version 1.2.8. This vulnerability specifically targets the password recovery or forgotten email functionality, which serves as a critical entry point for malicious actors seeking to compromise user sessions and execute unauthorized code within the context of affected web applications. The flaw resides in how the application processes and renders user-supplied email addresses during the password reset workflow, creating an avenue for persistent XSS attacks that can persist across multiple user sessions.
The technical implementation of this vulnerability stems from insufficient input validation and output encoding within the password recovery mechanism. When users attempt to retrieve forgotten passwords through the email feature, the application fails to properly sanitize the email address parameter before incorporating it into dynamic web page content. This omission allows attackers to embed malicious javascript code or html tags within the email address field, which then gets executed when the page renders. The vulnerability manifests as a reflected XSS attack vector since the malicious payload is executed immediately upon page load, rather than being stored on the server. This flaw aligns with CWE-79 which specifically addresses cross-site scripting vulnerabilities in web applications.
The operational impact of CVE-2005-3078 extends beyond simple script injection, as it provides attackers with the capability to hijack user sessions, steal cookies, redirect victims to malicious sites, and potentially escalate privileges within the affected forum environment. An attacker could craft a malicious email address containing javascript code that captures user credentials, modifies forum content, or redirects users to phishing pages designed to harvest additional sensitive information. The vulnerability's remote nature means that attackers do not require local access or authentication to exploit the flaw, making it particularly dangerous for publicly accessible web applications. This vulnerability directly maps to several ATT&CK techniques including T1566 for social engineering and T1059 for command and scripting interpreter usage.
Mitigation strategies for this vulnerability require immediate patching of the PunBB software to version 1.2.8 or later, which includes proper input sanitization and output encoding mechanisms. Organizations should implement comprehensive input validation that strips or encodes special characters from email addresses before processing, particularly focusing on common XSS payload indicators such as script tags, javascript protocols, and angle brackets. The implementation of Content Security Policy headers provides an additional layer of defense by restricting the sources from which scripts can be loaded and executed within the application context. Regular security audits and penetration testing should be conducted to identify similar vulnerabilities in other application components, particularly those handling user-supplied input in web forms and email processing functions. Organizations should also consider implementing web application firewalls and monitoring systems that can detect and block suspicious patterns in email address parameters, as the vulnerability represents a common attack vector that has been documented in numerous security assessments and penetration testing reports.