Stored Cross-Site Scripting in bracket-template
Summary
GHSA-jj6g-7j8p-7gf2: Cross-Site Scripting in bracket-template. Affects bracket-template versions < 1.1.5. No fix is published. How to fix ↓
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Background
bracket-template is an npm package used for templating in JavaScript applications. It allows users to define templates with placeholders that can be replaced with dynamic content. However, all versions of bracket-template are vulnerable to stored cross-site scripting (XSS) attacks. This vulnerability occurs when a variable passed in via a GET parameter is used in a template, allowing an attacker to inject malicious code into the rendered output.
Vulnerability Detail
The stored cross-site scripting vulnerability in bracket-template can have serious consequences. An attacker can exploit this vulnerability by crafting a malicious GET request that includes a parameter with a script tag. When the template is rendered, the script tag will be executed in the context of the user's browser, allowing the attacker to perform actions on behalf of the user, such as stealing sensitive information or performing unauthorized actions.
How To Fix
No fixed version is published for this vulnerability.
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Workaround
As there is no official fix for this vulnerability, a possible workaround is to sanitize any user input that is used in templates. This can be done by escaping special characters and validating the input to ensure it does not contain any malicious code. Here is an example of how to sanitize user input in a Node.js application using the escape-html package:
const escapeHtml = require('escape-html');
const userInput = req.query.input;
const sanitizedInput = escapeHtml(userInput);
// Use the sanitized input in the template
Conclusion
The stored cross-site scripting vulnerability in bracket-template can have serious security implications for applications that use this module. It is recommended to avoid installing or using bracket-template until a fix is provided. For further support on vulnerability remediation, please contact DevNack.com.
See every vulnerability recorded for bracket-template →
FAQ
Stored cross-site scripting (XSS) is a type of vulnerability that allows an attacker to inject malicious scripts into a website or web application. The injected scripts are then executed by the victim's browser, potentially allowing the attacker to steal sensitive information or perform unauthorized actions.
The vulnerability in bracket-template occurs when a variable passed in via a GET parameter is used in a template without proper sanitization. This allows an attacker to inject malicious code into the rendered output, which is then executed by the user's browser.
The consequences of the bracket-template vulnerability can be severe. An attacker can use it to steal sensitive information, such as login credentials or personal data, from users of the affected application. They can also perform unauthorized actions on behalf of the user, potentially leading to further security breaches.
No, there is currently no fix available for this vulnerability in bracket-template. It is recommended to avoid using this module until a fix is provided by the package maintainer.
While there is no official fix, a possible workaround is to sanitize user input before using it in templates. This can help prevent the execution of malicious code injected through the vulnerability. The example provided in the 'workaround' section demonstrates how to sanitize user input in a Node.js application.
References
Related vulnerabilities
Recent vulnerabilities recorded for bracket-template.
