CVE-2018-16459: Cross-Site Scripting in exceljs
Summary
CVE-2018-16459: Cross-Site Scripting in exceljs. Affects exceljs versions < 1.6.0. Fixed in 1.6.0. How to fix ↓
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Background
The exceljs package is an npm package used for creating and manipulating Excel files in JavaScript. It provides a convenient API for generating Excel files with various formatting options. However, versions of exceljs prior to 1.6.0 are vulnerable to cross-site scripting (XSS) attacks.
Vulnerability Detail
The vulnerability in exceljs stems from its failure to validate data from parsed XLSX files. This allows for the embedding of HTML tags, such as <script>, directly in the sheet cells. As a result, an attacker can inject malicious JavaScript code, which will be executed when the data from the sheet is displayed in a browser. This XSS vulnerability can lead to various security risks, including unauthorized access, data theft, and session hijacking.
How To Fix
Minimum fixed version
1.6.0
This is the first release that contains the fix.
npm install exceljs@1.6.0Tip — Not sure which version your app runs? Vulert can match this fix to it. Scan free →
Conclusion
The exceljs package prior to version 1.6.0 is vulnerable to cross-site scripting (XSS) attacks. It is crucial to update to version 1.6.0 or later to mitigate the risk of unauthorized access, data theft, and other malicious activities. For further support on vulnerability remediation, please contact DevNack.com.
See every vulnerability recorded for exceljs →
FAQ
This vulnerability allows an attacker to execute arbitrary JavaScript code in the context of a user's browser, potentially leading to unauthorized access, data theft, and other malicious activities.
You can use the Vulert Playground at Vulert Scanner to check if your application is affected by this vulnerability. Simply upload your package-lock.json file to the playground, and it will alert you if the exceljs package version is vulnerable.
Currently, there are no known workarounds for this vulnerability. It is recommended to update to the latest version of the exceljs package to mitigate the risk.
Yes, this vulnerability has been fixed in version 1.6.0 of the exceljs package. It is crucial to update to this version or later to ensure the security of your application.
For further support on vulnerability remediation, you can reach out to info@devnack.com. They can provide guidance and assistance in addressing this vulnerability.
