Malicious Code Detected in mm-scss-utils: A Security Alert
Summary
MAL-2025-6944: Malicious code in mm-scss-utils (npm). Affects mm-scss-utils versions >= 1.1.1. No fix is published. How to fix ↓
Check if this vulnerability affects your application
Upload a manifest or SBOM and we'll show whether you're affected, plus every other risky package in the same scan.
No signup required · Results in about 60 seconds
Background
The mm-scss-utils package is a utility library designed for handling SCSS (Sassy CSS) files in Node.js applications. It provides developers with tools to streamline the process of working with stylesheets, enhancing productivity and code organization. However, this package has been identified with a serious vulnerability that allows it to communicate with a domain associated with malicious activities, potentially compromising the security of applications that utilize it.
Vulnerability Detail
The vulnerability in mm-scss-utils originates from its ability to connect to a malicious domain, which can lead to unauthorized data access, code injection, or other harmful actions. This poses significant risks to applications using the package, as attackers could exploit this vulnerability to execute malicious code or steal sensitive information. The issue was introduced in version 1.1.1 and is classified as a SEMVER vulnerability, indicating that it affects the specified version and potentially subsequent versions if not addressed.
How To Fix
This package is malicious. Remove it and rotate any credentials it could have accessed.
npm uninstall mm-scss-utilsIf 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, you can remove the mm-scss-utils package from your project until a secure version is available. This can be done using the command: npm uninstall mm-scss-utils. Alternatively, consider using a different package that provides similar functionality without the associated risks.
Conclusion
The mm-scss-utils package has been identified with a critical vulnerability that allows communication with a malicious domain. It is crucial for developers using this package to update to a patched version or consider alternative solutions to mitigate security risks. Regular monitoring and vulnerability management, such as using tools like Vulert, can help maintain the integrity of your applications.
See every vulnerability recorded for mm-scss-utils →
FAQ
The vulnerability allows the package to communicate with a domain linked to malicious activities, posing security risks.
You can use Vulert, which monitors open-source vulnerabilities in your software. Visit Vulert Scanner to check your application without needing to sign up.
Consider removing the mm-scss-utils package or using an alternative package until a secure version is released.
Yes, a patched version of mm-scss-utils is expected to be released. Check the package repository for updates.
Failing to address this vulnerability could lead to unauthorized access, data breaches, or malicious code execution in your application.
