CVE-2018-10208 in Enterprise File Sharing
Summary
by MITRE
An issue was discovered in Vaultize Enterprise File Sharing 17.05.31. There is anonymous reflected XSS on the error page via a /share/error?message= URI.
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Analysis
by VulDB Data Team • 05/30/2025
The vulnerability identified as CVE-2018-10208 represents a critical security flaw within the Vaultize Enterprise File Sharing platform version 17.05.31. This issue manifests as an anonymous reflected cross-site scripting vulnerability that specifically affects the application's error handling mechanism. The vulnerability occurs when the system processes error messages through the /share/error?message= URI endpoint, creating an attack vector that can be exploited by unauthorized users without requiring authentication or specific privileges. The reflected nature of this XSS vulnerability means that malicious input is immediately reflected back to the user's browser without any modification or sanitization, making it particularly dangerous for exploitation. This type of vulnerability falls under the CWE-79 category of Cross-Site Scripting, which is classified as a fundamental web application security weakness that allows attackers to inject malicious scripts into web pages viewed by other users.
The technical implementation of this vulnerability stems from inadequate input validation and output encoding within the error page handling functionality of the Vaultize platform. When an error occurs during file sharing operations, the system constructs error messages by directly incorporating user-provided input from the message parameter into the HTML response without proper sanitization or encoding. This allows an attacker to craft malicious payloads that get executed in the context of a victim's browser when they encounter the error page. The vulnerability is particularly concerning because it does not require any authentication or specific user privileges to exploit, making it accessible to anyone who can trigger an error condition through the sharing functionality. The reflected nature means that the malicious script is executed immediately upon page load, potentially allowing for session hijacking, credential theft, or redirection to malicious sites. This vulnerability aligns with ATT&CK technique T1203 - Exploitation for Client Execution, which describes how attackers can use vulnerabilities to execute malicious code on client systems.
The operational impact of this vulnerability extends beyond simple script execution, as it can enable attackers to perform various malicious activities that compromise the security posture of the affected organization. An attacker could potentially steal session cookies, redirect users to phishing sites, or inject malicious content that appears legitimate to users interacting with the file sharing platform. The vulnerability affects the entire user base of the Vaultize Enterprise File Sharing system, as any user who encounters an error page could be targeted by an XSS attack. This creates a significant risk for enterprises that rely on the platform for sensitive file sharing operations, as the exploitation could lead to unauthorized access to shared files, data exfiltration, or further lateral movement within the network. The vulnerability also impacts the integrity of the user experience, as legitimate error messages could be replaced with malicious content, potentially causing confusion and trust issues among users. Organizations using this version of Vaultize would need to consider the broader implications of this vulnerability, including potential compliance violations and reputational damage if exploited successfully.
Organizations affected by this vulnerability should implement immediate mitigations to protect their systems and users from potential exploitation. The primary recommended approach involves implementing strict input validation and output encoding mechanisms within the error handling components of the Vaultize platform. This includes sanitizing all user-provided input before incorporating it into HTML responses and ensuring that all dynamic content is properly escaped to prevent script execution. Additionally, organizations should consider implementing Content Security Policy headers that restrict the execution of inline scripts and limit the sources from which scripts can be loaded. The vulnerability also highlights the importance of keeping enterprise file sharing platforms updated with the latest security patches, as this issue was likely addressed in subsequent releases of the Vaultize software. Organizations should also implement network monitoring and intrusion detection systems to identify potential exploitation attempts targeting this specific vulnerability. Regular security assessments and penetration testing should be conducted to identify similar vulnerabilities in other components of the enterprise file sharing infrastructure, ensuring a comprehensive approach to protecting sensitive data and maintaining system integrity throughout the organization's digital ecosystem.