CVE-2006-3607 in Banner Exchange
Summary
by MITRE
Multiple cross-site scripting (XSS) vulnerabilities in Softbiz Banner Exchange Script (aka Banner Exchange Network Script) 1.0 allow remote attackers to inject arbitrary web script or HTML via (1) the city parameter in (a) insertmember.php, and (2) a PHPSESSID cookie in (b) lostpassword.php, (c) gen_confirm_mem.php, and (d) index.php.
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Analysis
by VulDB Data Team • 04/03/2026
The CVE-2006-3607 vulnerability affects the Softbiz Banner Exchange Script version 1.0, a web-based advertising platform that facilitates banner exchanges between websites. This vulnerability represents a critical security flaw that enables remote attackers to execute malicious scripts within the context of legitimate user sessions. The vulnerability manifests through multiple attack vectors that exploit insufficient input validation and output sanitization mechanisms within the application's core components.
The technical implementation of this vulnerability stems from inadequate parameter validation in the application's PHP scripts. Specifically, the city parameter in insertmember.php fails to properly sanitize user input before processing, allowing attackers to inject malicious JavaScript code that gets executed when the parameter is displayed to other users. Additionally, the application's handling of the PHPSESSID cookie across multiple pages including lostpassword.php, gen_confirm_mem.php, and index.php creates a persistent cross-site scripting vulnerability. This occurs because the application does not properly validate or escape cookie values before incorporating them into web responses, creating a pathway for attackers to inject malicious content that executes in the context of other users' browsers.
The operational impact of this vulnerability extends beyond simple script injection, as it provides attackers with the capability to hijack user sessions, steal sensitive information, and potentially gain unauthorized access to administrative functions. Attackers can leverage these vulnerabilities to execute malicious code that may redirect users to phishing sites, steal session cookies, or perform actions on behalf of authenticated users. The persistence of these vulnerabilities across multiple pages increases the attack surface and makes exploitation more likely, as users may encounter the malicious code during various stages of the application's workflow.
From a cybersecurity framework perspective, this vulnerability aligns with CWE-79 Cross-site Scripting and CWE-312 Cleartext Storage of Sensitive Information, demonstrating how poor input validation combined with insecure session management creates exploitable conditions. The ATT&CK framework categorizes this as a web application vulnerability that enables initial access and privilege escalation through client-side exploitation techniques. Organizations using this software face significant risk of data breaches and unauthorized access, as the vulnerabilities can be exploited without requiring special privileges or advanced technical knowledge.
Mitigation strategies should include immediate implementation of input validation and output encoding mechanisms throughout the application's codebase, particularly focusing on parameter sanitization and cookie handling. The application should employ proper HTML escaping for all dynamic content and implement Content Security Policy headers to prevent unauthorized script execution. Additionally, developers should enforce secure session management practices, including proper cookie attributes such as HttpOnly and Secure flags, and implement proper input validation at multiple layers of the application architecture to prevent similar vulnerabilities from occurring in future versions.