CVE-2019-5458: Cross-Site Scripting in http-file-server
Summary
CVE-2019-5458: Cross-Site Scripting in http-file-server. Affects http-file-server versions < 0.2.6. No fix is published. How to fix ↓
Check if this vulnerability affects your application
Upload a manifest or SBOM and we'll show whether you're affected, plus every other risky package in the same scan.
No signup required · Results in about 60 seconds
Background
The http-file-server package is an npm package that provides a simple HTTP server for serving static files. It allows users to easily share files over HTTP. However, all versions of http-file-server are vulnerable to Cross-Site Scripting (XSS) attacks. This vulnerability occurs because the package fails to properly sanitize filenames, allowing attackers to execute arbitrary JavaScript code in the victim's browser through files with malicious names.
Vulnerability Detail
The Cross-Site Scripting (XSS) vulnerability in http-file-server allows attackers to inject and execute arbitrary JavaScript code in the victim's browser. By uploading files with malicious names, an attacker can exploit this vulnerability to perform various malicious actions, such as stealing sensitive information, hijacking user sessions, or defacing websites. The vulnerability has a CVSS score of 5.4, indicating a moderate severity level.
How To Fix
No fixed version is published for this vulnerability.
Tip — Not sure whether your app is affected? Vulert can check the versions your app actually runs. Scan free →
Workaround
As there is no fix available, a possible workaround is to manually sanitize filenames before uploading them to the server. This can be done by implementing a server-side validation mechanism that checks for any potentially malicious characters or patterns in the filenames. Additionally, implementing content security policies (CSP) on the server-side can help mitigate the impact of XSS attacks.
Conclusion
The http-file-server package is vulnerable to Cross-Site Scripting (XSS) attacks due to a lack of filename sanitization. Currently, there is no fix available, and it is recommended to consider using an alternative package. Stay updated with the official repository or package manager for any future patches or updates. For further support on vulnerability remediation, you can reach out to DevNack.com.
See every vulnerability recorded for http-file-server →
FAQ
Cross-Site Scripting (XSS) is a type of security vulnerability that allows attackers to inject and execute malicious scripts in web pages viewed by other users. It occurs when a web application does not properly validate or sanitize user input, allowing the injection of malicious code.
This vulnerability can be exploited by uploading files with malicious names that contain JavaScript code. When a victim accesses the server and opens the file, the malicious code is executed in their browser, allowing the attacker to perform various malicious actions.
The consequences of this vulnerability can be severe. An attacker can use it to steal sensitive information, such as login credentials or personal data, hijack user sessions, deface websites, or perform other malicious actions that the victim's browser is capable of.
Currently, there is no fix available for this vulnerability in the http-file-server package. It is recommended to consider using an alternative package until a fix is made available. Keep an eye on the official repository or package manager for any updates or patches that address this vulnerability.
To mitigate the impact of this vulnerability, you can implement server-side validation mechanisms to sanitize filenames before uploading them. Additionally, implementing content security policies (CSP) can help prevent the execution of malicious scripts in the browser.
Related vulnerabilities
Recent vulnerabilities recorded for http-file-server.
