Malicious Code Injection in ugly_mosquito-appteadev Package
Summary
MAL-2025-109959: Malicious code in ugly_mosquito-appteadev (npm). Affected versions are not published. No fix is published. How to fix ↓
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Background
The ugly_mosquito-appteadev package is part of the npm ecosystem, primarily used for application development. It is often utilized for its utility in managing dependencies and facilitating the development process. However, this package has been identified as part of a malicious campaign that floods the npm registry with harmful scripts designed to manipulate package metadata and inflate developer reputation scores.
Vulnerability Detail
The vulnerability originates from the package being associated with a malicious campaign that modifies the package.json file to remove private flags, alters version numbers, and generates random package names. This behavior leads to the continuous republishing of variants, polluting the npm registry and potentially compromising the integrity of other packages. The malicious payload can affect developers by misleading them about the reliability of their dependencies and can lead to security breaches in applications that rely on this package.
How To Fix
This package is malicious. Remove it and rotate any credentials it could have accessed.
npm uninstall ugly_mosquito-appteadevIf 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 remove the ugly_mosquito-appteadev package from your project by executing: npm uninstall ugly_mosquito-appteadev. This will prevent any malicious code from executing while you assess alternative packages or wait for a patched version.
Conclusion
The ugly_mosquito-appteadev package has been identified as a vector for malicious code injection, posing significant risks to developers and their applications. It is crucial to take immediate action by updating or removing the package to safeguard your projects. Utilizing tools like Vulert can help in monitoring for such vulnerabilities in real-time.
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FAQ
It is an npm package used in application development, but it has been identified as part of a malicious campaign.
The vulnerability can lead to the injection of malicious code, compromising the integrity of your application and its dependencies.
You should update the package to a patched version or remove it from your project until a fix is available.
You can use Vulert, which monitors your package-lock.json file to alert you in real-time for open-source vulnerabilities.
Yes, you can use the Vulert playground at Vulert Scanner to check for vulnerabilities in your application without any signup.
