Malicious Code Detected in @tezign/html-webpack-plugin: Security Alert
Summary
MAL-2025-190916: Malicious code in @tezign/html-webpack-plugin (npm). Affected versions are not published. No fix is published. How to fix ↓
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Background
The @tezign/html-webpack-plugin is an npm package designed to facilitate the integration of HTML files into Webpack builds. It provides developers with a streamlined way to manage HTML templates and assets within their JavaScript applications. However, this package has been found to contain malicious code, posing significant security risks to users who incorporate it into their projects.
Vulnerability Detail
The vulnerability originates from the discovery of malicious code embedded within the @tezign/html-webpack-plugin package. This code can potentially compromise the integrity of applications that utilize this package, leading to unauthorized access, data breaches, or other malicious activities. The vulnerability affects all versions starting from 0 and has been flagged by Amazon Inspector, indicating a serious threat to users.
How To Fix
This package is malicious. Remove it and rotate any credentials it could have accessed.
npm uninstall @tezign/html-webpack-pluginIf it arrived as a transitive dependency, remove the package that pulled it in, then reinstall.
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Workaround
As a temporary workaround, consider removing the @tezign/html-webpack-plugin from your project until a secure version is released. You can do this by executing the following command: npm uninstall @tezign/html-webpack-plugin. This will help mitigate the risk of exploitation while you await a fix.
Conclusion
The discovery of malicious code in the @tezign/html-webpack-plugin poses a significant risk to developers and their applications. Immediate action is recommended to update or remove the package to safeguard against potential threats. Stay informed about updates and patches to ensure your software remains secure.
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FAQ
The malicious code can perform unauthorized actions within applications, 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.
If an immediate update is not possible, consider removing the package from your project as a temporary measure to avoid potential risks.
While specific exploits have not been detailed, the presence of malicious code indicates a high risk of exploitation in affected applications.
For further inquiries, you can reach out to the finder of this vulnerability, Amazon Inspector, at actran@amazon.com.
