CVE-2007-6687 in Menalto
Summary
by MITRE
Multiple cross-site scripting (XSS) vulnerabilities in Menalto Gallery before 2.2.4 allow remote attackers to inject arbitrary web script or HTML via crafted filenames to the (1) Core or (2) add-item modules; or via (3) HTTP PROPPATCH in the WebDAV module.
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Analysis
by VulDB Data Team • 07/30/2021
The vulnerability identified as CVE-2007-6687 represents a critical cross-site scripting vulnerability affecting Menalto Gallery versions prior to 2.2.4. This flaw exists in multiple modules of the gallery application and allows remote attackers to execute malicious scripts within the context of other users' browsers. The vulnerability stems from insufficient input validation and sanitization of user-supplied data, particularly when processing filenames and WebDAV protocol operations. Attackers can exploit this weakness by crafting malicious filenames that contain embedded script code, which then gets executed when other users view the affected gallery pages. The vulnerability impacts both the Core and add-item modules, where user-provided filenames are directly incorporated into web page output without proper sanitization. Additionally, the WebDAV module presents another attack vector through HTTP PROPPATCH requests, where malicious data can be injected into the application's handling of WebDAV properties. This vulnerability falls under CWE-79 - Improper Neutralization of Input During Web Page Generation, which is a fundamental weakness in web application security that allows attackers to inject malicious content into web pages viewed by other users. The attack surface is particularly concerning as it affects core functionality of the gallery application, where users routinely upload and view media files with descriptive names that could contain malicious payloads. The operational impact extends beyond simple script execution, as successful exploitation could lead to session hijacking, credential theft, or redirection to malicious websites. According to ATT&CK framework, this vulnerability maps to T1059.007 - Command and Scripting Interpreter: JavaScript, as it enables attackers to execute JavaScript code in victim browsers. The vulnerability affects the availability and integrity of the gallery application by potentially corrupting user sessions and compromising the trust relationship between users and the application. The exploitation requires minimal privileges and can be performed remotely, making it particularly dangerous for web applications that host user-generated content. Organizations using affected versions of Menalto Gallery should immediately implement input validation measures, including sanitizing all user-supplied filenames and implementing proper output encoding for all dynamic content. The most effective mitigation strategy involves upgrading to version 2.2.4 or later, which includes proper input validation and sanitization mechanisms. Additionally, implementing content security policies and regular security audits of file upload processes can help prevent similar vulnerabilities from being exploited in the future.