CVE-2025-1983 in Ready
Summary
by MITRE • 04/16/2025
A cross-site scripting (XSS) vulnerability in Ready_'s File Explorer upload functionality allows injection of arbitrary JavaScript code in filename. Injected content is stored on server and is executed every time a user interacts with the uploaded file.
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Analysis
by VulDB Data Team • 04/16/2025
This cross-site scripting vulnerability exists within Ready_'s File Explorer upload functionality, representing a critical security flaw that enables attackers to inject malicious JavaScript code directly into file names. The vulnerability stems from inadequate input validation and sanitization mechanisms that fail to properly filter or escape user-supplied data before storing it in the system's database. When users interact with files containing malicious payloads in their names, the stored JavaScript code executes in the context of other users' browsers, creating a persistent cross-site scripting attack vector. The flaw specifically affects the upload process where file names are not adequately sanitized, allowing attackers to embed script tags or other malicious code within the filename itself.
The technical implementation of this vulnerability demonstrates a classic XSS weakness that aligns with CWE-79, which describes improper neutralization of input during web page generation. This weakness occurs because the application does not properly encode or escape user-controllable data before rendering it in web pages, creating opportunities for attackers to execute malicious scripts in victims' browsers. The attack vector is particularly dangerous because it leverages the file naming mechanism as a delivery method, bypassing traditional security controls that might monitor content within file bodies. The stored nature of the vulnerability means that once a malicious filename is uploaded, it remains persistent and will execute every time any user interacts with the file through the explorer interface.
The operational impact of this vulnerability extends beyond simple script execution, creating potential for severe security consequences including session hijacking, credential theft, and data exfiltration. When users navigate to directories containing maliciously named files, their browsers execute the injected JavaScript code, which can capture cookies, redirect users to malicious sites, or perform actions on behalf of authenticated users. This persistent threat means that the vulnerability remains active until the malicious file is removed or the system is patched, potentially affecting all users who interact with the affected file explorer functionality. The attack can be amplified through social engineering tactics where attackers upload files with misleading names to trick users into interacting with them, making the vulnerability particularly dangerous in collaborative environments.
Mitigation strategies for this vulnerability should include comprehensive input validation and sanitization of all file names, implementing proper HTML encoding for user-controllable data before rendering, and employing Content Security Policy headers to limit script execution. Organizations should implement strict filename validation that rejects or sanitizes potentially dangerous characters and patterns, while also considering the implementation of automatic file name sanitization during upload processes. The solution should align with ATT&CK technique T1566, which covers social engineering methods, by ensuring that user interactions with file names are properly protected against malicious input. Additionally, regular security testing and code reviews should focus on input handling mechanisms, particularly around file upload and management functionalities, to prevent similar vulnerabilities from emerging in other parts of the application.