CVE-2007-1342 in vBulletin
Summary
by MITRE
Cross-site scripting (XSS) vulnerability in admincp/index.php in Jelsoft vBulletin 3.6.5 and earlier allows remote attackers to inject arbitrary web script or HTML via the add rss url form.
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Analysis
by VulDB Data Team • 08/26/2018
The vulnerability identified as CVE-2007-1342 represents a critical cross-site scripting flaw within the administrative control panel of Jelsoft vBulletin version 3.6.5 and earlier systems. This weakness specifically affects the admincp/index.php component where the application fails to properly validate or sanitize user input submitted through the add rss url form functionality. The flaw enables remote attackers to inject malicious web scripts or HTML code that can be executed in the context of other users' browsers who access the affected administrative interface.
This XSS vulnerability operates under CWE-79 which classifies it as a weakness in input validation and output encoding, specifically targeting the failure to properly escape or filter user-supplied data before rendering it within web pages. The vulnerability exists because the application does not implement adequate sanitization mechanisms for the rss url parameter that is processed through the administrative interface. When administrators or authorized users navigate to pages that display the injected content, the malicious scripts execute within their browser context, potentially leading to session hijacking, credential theft, or further exploitation of the administrative privileges.
The operational impact of this vulnerability extends beyond simple script injection as it provides attackers with a pathway to compromise the administrative control panel of vBulletin installations. Since the flaw is present in the admincp component, successful exploitation could allow attackers to gain elevated privileges, modify forum configurations, inject malicious content into the forum, or even establish persistent backdoors through the administrative interface. The remote nature of the attack means that an attacker does not require physical access or local network privileges to exploit this vulnerability, making it particularly dangerous for publicly accessible forum installations. This aligns with ATT&CK technique T1059 which describes the use of remote code execution capabilities through web-based attack vectors.
Mitigation strategies for CVE-2007-1342 should focus on immediate patching of affected vBulletin installations to version 3.6.6 or later where this vulnerability has been addressed. Organizations should also implement input validation controls at multiple layers including web application firewalls that can detect and block suspicious script injection attempts. The implementation of proper output encoding mechanisms for all user-supplied content in administrative interfaces is essential to prevent XSS exploitation. Additionally, administrators should enforce principle of least privilege by limiting access to administrative functions and implementing multi-factor authentication for administrative accounts. Regular security assessments and code reviews should be conducted to identify similar input validation weaknesses in other application components, particularly those handling user-provided data in administrative contexts. The vulnerability demonstrates the critical importance of maintaining up-to-date software versions and implementing comprehensive security measures in web application development practices.