Malicious Code Detected in basicwar Package - Security Alert

basicwar Updated 02 Oct 2025

Summary

14/08/2025
CRITICAL
No i
Critical
Not published

MAL-2025-15507: Malicious code in basicwar (npm). Affected versions are not published. No fix is published. How to fix ↓

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Background

The basicwar package is an npm module designed for specific functionalities within JavaScript applications. It is commonly used for various tasks, but its recent discovery of malicious code has raised significant concerns. Users of this package are at risk of potential security breaches due to the embedded harmful code.

Vulnerability Detail

The vulnerability in the basicwar package originates from the inclusion of malicious code that can compromise the security of applications utilizing this package. This code can lead to unauthorized access, data breaches, or other harmful actions within the affected systems. The issue affects all versions of the package starting from its introduction, making it critical for users to address this vulnerability immediately.

How To Fix

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

npm uninstall basicwar

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 →

Workaround

As a temporary workaround, users can isolate the basicwar package from their application and ensure that it is not included in their dependencies. This can be done by removing it from the package.json file and running npm install to update the dependencies.

Conclusion

The basicwar package has been identified as containing malicious code, posing a significant risk to applications that utilize it. Users are advised to remove the package and monitor their projects for vulnerabilities using tools like Vulert.

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FAQ

The basicwar package is an npm module used in JavaScript applications for various functionalities. However, it has been found to contain malicious code.

The malicious code can lead to unauthorized access, data breaches, and other harmful actions within your application, compromising its security.

You should remove the basicwar package from your project and replace it with a secure alternative. If a patched version is available, update it using npm.

Yes, you can use Vulert, which monitors and alerts in real-time for open-source vulnerabilities using just your package-lock.json file.

You can use the Vulert playground at Vulert Scanner to check if your application is affected by this vulnerability without any signup.

How To Fix

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

npm uninstall basicwar

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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