Critical Malicious Code Vulnerability in avalon-plugin-xmlhttprequest

avalon-plugin-xmlhttprequest Updated 02 Oct 2025

Summary

14/08/2025
CRITICAL
No i
Critical
Not published

MAL-2025-15190: Malicious code in avalon-plugin-xmlhttprequest (npm). Affected versions are not published. No fix is published. How to fix ↓

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Background

The avalon-plugin-xmlhttprequest is an npm package designed to facilitate XMLHttpRequest functionality in Avalon-based applications. It allows developers to make asynchronous HTTP requests, enhancing the interactivity of web applications. However, this package has been identified to contain malicious code, posing significant risks to users and their applications.

Vulnerability Detail

The vulnerability in the avalon-plugin-xmlhttprequest arises from the inclusion of malicious code within the package. This code can potentially compromise the security of applications using this package, leading to unauthorized access, data breaches, or other malicious activities. The issue was introduced in version 0 and affects all subsequent versions, making it critical for users to take immediate action.

How To Fix

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

npm uninstall avalon-plugin-xmlhttprequest

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, users can remove the avalon-plugin-xmlhttprequest package from their project until a secure version is released. This can be done using the following command: npm uninstall avalon-plugin-xmlhttprequest. Additionally, consider using alternative packages that provide similar functionality without the associated risks.

Conclusion

The discovery of malicious code in the avalon-plugin-xmlhttprequest package poses a serious threat to users and their applications. Immediate action is required to mitigate risks, including updating or removing the package. Utilizing tools like Vulert can aid in monitoring for such vulnerabilities in the future.

See every vulnerability recorded for avalon-plugin-xmlhttprequest →

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FAQ

The malicious code can execute unauthorized actions within the application, potentially leading to data theft or system compromise.

You can use Vulert, which monitors and alerts for open-source vulnerabilities in real-time. Visit Vulert Scanner to check your application without any signup.

Consider removing the package temporarily and using alternative solutions until a secure version is available.

While specific exploits have not been publicly disclosed, the presence of malicious code indicates a high risk of exploitation.

Regularly check for updates to your packages and consider using tools like Vulert to monitor your dependencies for vulnerabilities.

How To Fix

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

npm uninstall avalon-plugin-xmlhttprequest

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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