Malicious Code Detected in plugin-basic-ssl: Version 9.1.1 Compromised

plugin-basic-ssl Updated 02 Oct 2025

Summary

24/07/2025
CRITICAL
No i
Critical
Not published

MAL-2025-6232: Malicious code in plugin-basic-ssl (npm). Affects plugin-basic-ssl versions >= 9.1.1. No fix is published. How to fix ↓

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Background

The 'plugin-basic-ssl' package is an npm module designed to facilitate SSL-related functionalities in web applications. It is commonly used by developers to enhance security through SSL certificates. However, version 9.1.1 has been flagged for containing malicious code that compromises its integrity and poses security risks to users.

Vulnerability Detail

The vulnerability in 'plugin-basic-ssl' arises from its communication with a domain linked to malicious activities. This package executes commands that can lead to unauthorized actions on the user's system. The origin of this vulnerability is traced back to the package's design, which allows it to interact with external domains without sufficient security checks, potentially leading to data breaches or system compromises.

How To Fix

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

npm uninstall plugin-basic-ssl

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 remove the 'plugin-basic-ssl' package from their project until a secure version is released. This can be done using the command: npm uninstall plugin-basic-ssl.

Conclusion

The 'plugin-basic-ssl' package version 9.1.1 has been identified as malicious, posing significant security risks. Users are advised to update or remove the package to protect their applications from potential threats. Utilizing tools like Vulert can help monitor and alert for such vulnerabilities in real-time.

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FAQ

Version 9.1.1 of 'plugin-basic-ssl' communicates with a malicious domain and executes harmful commands, posing a risk to user systems.

You can use Vulert's playground at Vulert Scanner to check if your application is affected by this vulnerability without needing to sign up.

If immediate updates are not possible, consider removing the package as a temporary measure to mitigate risks until a secure version is available.

Detailed information about the vulnerability can be found on the OpenSSF Package Analysis project page or the GitHub repository.

Yes, the malicious behavior could potentially lead to unauthorized access to sensitive data, resulting in data loss or breaches.

How To Fix

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

npm uninstall plugin-basic-ssl

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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