CVE-2007-0567 in PHP Membership Manager
Summary
by MITRE
Cross-site scripting (XSS) vulnerability in admin.php in Interactive-Scripts.Com PHP Membership Manager 1.5 allows remote attackers to inject arbitrary web script or HTML via the _p parameter.
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Analysis
by VulDB Data Team • 11/09/2025
The vulnerability identified as CVE-2007-0567 represents a classic cross-site scripting flaw within the PHP Membership Manager version 1.5 developed by Interactive-Scripts.Com. This security weakness exists in the administrative interface component known as admin.php, making it susceptible to malicious exploitation by remote attackers who can manipulate input parameters to execute unauthorized scripts within victim browsers. The specific parameter _p serves as the attack vector, where improper input validation and sanitization allows attackers to inject malicious web script or HTML content that gets executed in the context of legitimate users.
This vulnerability falls under the CWE-79 category of Cross-Site Scripting, which is classified as a critical web application security flaw that enables attackers to inject client-side scripts into web pages viewed by other users. The attack occurs when the application fails to properly validate or escape user-supplied input before incorporating it into dynamic web content. In this particular case, the _p parameter in the admin.php file does not undergo adequate sanitization, allowing an attacker to craft malicious payloads that can be executed within the administrative context of the membership manager. The vulnerability demonstrates poor input handling practices and inadequate output encoding mechanisms that are fundamental requirements for preventing XSS attacks according to industry security standards.
The operational impact of this vulnerability extends beyond simple script injection, as it provides attackers with potential access to administrative functions within the membership manager system. An attacker who successfully exploits this vulnerability could execute arbitrary code within the context of an authenticated user's browser, potentially leading to session hijacking, data theft, or unauthorized modifications to the membership database. The remote nature of the attack means that exploitation can occur from any location without requiring physical access to the system, making it particularly dangerous for web applications that handle sensitive user data. This vulnerability represents a significant risk to organizations relying on the PHP Membership Manager for user authentication and membership management services.
Mitigation strategies for this vulnerability should focus on implementing comprehensive input validation and output encoding mechanisms. The primary defense involves properly sanitizing all user input parameters, particularly those used in administrative interfaces, through the implementation of strict validation rules and the use of context-appropriate encoding techniques. Organizations should employ parameterized input validation that rejects or removes potentially malicious content before processing user-supplied data. Additionally, implementing Content Security Policy headers can provide an additional layer of protection against script execution. The fix should involve updating the admin.php script to properly escape or filter the _p parameter before incorporating it into any dynamic web content, ensuring that all user input is treated as untrusted and validated against a whitelist of acceptable characters and formats. This vulnerability underscores the importance of following secure coding practices and adhering to the principle of least privilege in web application development, where administrative interfaces should have the most rigorous input validation and output encoding mechanisms to prevent unauthorized access and data compromise.