Critical Malicious Code Vulnerability in example-advanced Package

example-advanced Updated 02 Oct 2025

Summary

03/02/2025
CRITICAL
No i
Critical
Not published

MAL-2025-1217: Malicious code in example-advanced (npm). Affects example-advanced versions 2.1.0. No fix is published. How to fix ↓

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Background

The example-advanced package is a widely used npm library designed for advanced functionalities in JavaScript applications. It provides developers with tools to enhance their applications but has recently been identified as vulnerable to malicious code that communicates with a domain linked to harmful activities. This vulnerability poses a significant risk to applications relying on this package, potentially leading to data breaches or unauthorized access.

Vulnerability Detail

The vulnerability identified as MAL-2025-1217 stems from the example-advanced package's communication with a domain associated with malicious activities. This can lead to severe ramifications, including data theft, unauthorized access to user information, and potential exploitation of the application. The technical aspect of this vulnerability lies in the package's failure to validate external communications, allowing it to interact with harmful domains without proper checks.

How To Fix

This package is malicious. Remove it and rotate any credentials it could have accessed.

npm uninstall example-advanced

If it arrived as a transitive dependency, remove the package that pulled it in, then reinstall.

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Workaround

As a temporary workaround, you can restrict network access for the example-advanced package to prevent it from communicating with external domains. This can be done by configuring your firewall settings or using network monitoring tools to block outgoing requests from the package.

Conclusion

The example-advanced package has been identified with a critical vulnerability that allows communication with a malicious domain. It is essential to update the package to the latest version to mitigate risks. Implementing network restrictions can serve as a temporary measure until an update is feasible. Utilizing tools like Vulert can further enhance your monitoring capabilities for open-source vulnerabilities.

See every vulnerability recorded for example-advanced →

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FAQ

The example-advanced package is an npm library that provides advanced functionalities for JavaScript applications, enhancing their capabilities.

This vulnerability can lead to unauthorized access and data breaches, compromising the security of your application and its users.

If an immediate update is not possible, implement network restrictions as a temporary workaround to mitigate risks.

Detailed information about this vulnerability can be found on the GitHub repository of the malicious packages project.

Vulert provides real-time monitoring and alerts for open-source vulnerabilities using just your package-lock.json file, allowing you to stay informed without needing to access the code directly.

How To Fix

This package is malicious. Remove it and rotate any credentials it could have accessed.

npm uninstall example-advanced

If it arrived as a transitive dependency, remove the package that pulled it in, then reinstall.

Tip — Not sure whether your app is affected? Vulert can check the versions your app actually runs. Scan free →

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