Critical Malicious Code Vulnerability in ids-css Package
Summary
MAL-2025-191106: Malicious code in ids-css (npm). Affects ids-css versions 1.5.1. 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 ids-css package is a library used in web development for styling and layout purposes. It provides a range of CSS utilities that help developers create visually appealing and responsive web applications. However, the package has been compromised, leading to significant security concerns for users who have it installed.
Vulnerability Detail
The ids-css package has been identified to contain malicious code that can compromise any computer where it is installed. This vulnerability originates from a malicious actor who embedded harmful code within the package, which can lead to unauthorized access to sensitive information, including secrets and keys stored on the affected system. Users are advised to treat any system with this package as fully compromised, as the malicious code may persist even after the package is removed.
How To Fix
This package is malicious. Remove it and rotate any credentials it could have accessed.
npm uninstall ids-cssIf 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
There are no effective workarounds for this vulnerability. The only recommended action is to remove the ids-css package entirely from your system.
Conclusion
The ids-css package has been compromised with malicious code, posing a significant security risk to users. Immediate action is required to remove the package and secure any sensitive information. Regular monitoring of your dependencies is essential to maintain security.
See every vulnerability recorded for ids-css →
FAQ
You should remove the ids-css package immediately and rotate any sensitive information stored on your system.
You can use the Vulert playground at Vulert Scanner to check if your application is affected by this vulnerability without needing to sign up.
As of now, there is no patch available. The best course of action is to remove the package.
Failing to remove the package could lead to unauthorized access to your system and potential data breaches.
It is advisable to review other packages from the same source carefully and monitor them for any vulnerabilities.
