CVE-2009-2569 in Verlihub Control Panel
Summary
by MITRE
Multiple cross-site scripting (XSS) vulnerabilities in Verlihub Control Panel (VHCP) 1.7e allow remote attackers to inject arbitrary web script or HTML via (1) the nick parameter in a login action to index.php or (2) the URI in a news request to index.html.
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Analysis
by VulDB Data Team • 09/14/2025
The vulnerability identified as CVE-2009-2569 represents a critical cross-site scripting flaw discovered in Verlihub Control Panel version 1.7e, a web-based administration interface for peer-to-peer file sharing networks. This vulnerability exposes the system to remote code execution risks through malicious input injection, potentially compromising user sessions and system integrity. The flaw specifically affects two distinct input vectors within the authentication and news handling mechanisms of the control panel, creating multiple attack surfaces for malicious actors.
The technical implementation of this vulnerability stems from inadequate input validation and output sanitization within the VHCP application. When users attempt to log in through the index.php script, the nick parameter fails to properly sanitize user-provided input, allowing attackers to inject malicious JavaScript code or HTML content. Similarly, the URI parameter in news requests processed by index.html lacks proper validation mechanisms, enabling the execution of arbitrary scripts. These weaknesses directly correlate to CWE-79, which defines cross-site scripting vulnerabilities as the injection of malicious code into web applications, and CWE-80, which addresses the improper neutralization of script-related HTML tags in a web page.
The operational impact of this vulnerability extends beyond simple data theft or session hijacking, as it provides attackers with the capability to manipulate the web interface and potentially gain unauthorized access to administrative functions. Remote attackers can exploit these flaws to execute malicious scripts in the context of other users' browsers, potentially leading to complete system compromise. The vulnerability affects the authentication and content management components of the Verlihub Control Panel, undermining the security of user sessions and potentially allowing attackers to modify news content, access restricted areas, or redirect users to malicious websites. This type of vulnerability aligns with ATT&CK technique T1059.007 for scripting and T1566 for credential access through social engineering, as attackers can leverage these XSS flaws to harvest user credentials or manipulate the user interface.
Mitigation strategies for CVE-2009-2569 should prioritize immediate input validation and output encoding implementations within the VHCP application. Security measures must include implementing proper parameter sanitization for all user-supplied input, particularly in authentication and content handling scripts. The recommended approach involves establishing comprehensive input validation routines that filter out potentially malicious characters and implementing strict output encoding mechanisms to prevent script execution in web contexts. Additionally, the application should employ Content Security Policy headers to restrict script execution and prevent unauthorized code injection. System administrators should also consider implementing web application firewalls to detect and block suspicious input patterns, while regular security audits should verify that all user input is properly sanitized before processing. The vulnerability demonstrates the critical importance of input validation in web applications and aligns with security best practices outlined in OWASP Top Ten and NIST cybersecurity guidelines for preventing injection vulnerabilities.