Malicious Code Detected in avalon-plugin-ui: A Critical Security Alert

avalon-plugin-ui Updated 02 Oct 2025

Summary

14/08/2025
CRITICAL
No i
Critical
Not published

MAL-2025-15188: Malicious code in avalon-plugin-ui (npm). Affected versions are not published. No fix is published. How to fix ↓

Free scan

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.

Check my app free

No signup required · Results in about 60 seconds

Upload your dependency manifest or SBOM

Drag & drop your file here or

Java Javascript PHP Python Go Rust Ruby Dart C/C++ Elixir CycloneDX SPDX

Upload a supported dependency manifest or SBOM. No installation or source-code access required.

See supported files and SBOM formats
SBOM sbom.json · bom.json · bom.xml · *.spdx.json · *.cdx.json · *.cdx.xml
Java pom.xml · gradle.lockfile · buildscript-gradle.lockfile
Javascript package-lock.json · yarn.lock · pnpm-lock.yaml
PHP composer.lock
Python poetry.lock · requirements.txt · Pipfile.lock
Go go.mod
Rust Cargo.lock
Ruby Gemfile.lock
Dart pubspec.lock
C/C++ conan.lock
Elixir mix.lock
Enter your work email to receive your report link.

Verify your email to view the full report and start 30 days of continuous monitoring. No credit card required.

Sponsored Lume, the Habilume companion Habilume Habit tracker with a companion that grows with you Complete habits, earn Lume Points, and watch your Lume grow as you stay consistent. App Store Google Play

Background

The package 'avalon-plugin-ui' is an npm library designed to provide user interface components for web applications. It is widely used for its ease of integration and rich feature set. However, it has recently been identified as containing malicious code, which poses significant security risks to applications that utilize this package.

Vulnerability Detail

The vulnerability stems from the presence of malicious code within the 'avalon-plugin-ui' package. This code can potentially compromise the integrity of applications that depend on it, leading to unauthorized access, data breaches, or other malicious activities. The issue was introduced in version 0 and affects all subsequent versions, making it imperative for users to take immediate action.

How To Fix

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

npm uninstall avalon-plugin-ui

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, consider replacing 'avalon-plugin-ui' with an alternative UI component library that does not have known vulnerabilities. Review your project's dependencies and ensure that no other packages are relying on 'avalon-plugin-ui'.

Conclusion

The discovery of malicious code in the 'avalon-plugin-ui' package highlights the importance of regularly monitoring dependencies for vulnerabilities. Users must take proactive measures to protect their applications by uninstalling the affected package and seeking alternatives.

See every vulnerability recorded for avalon-plugin-ui →

Share this vulnerability

FAQ

'avalon-plugin-ui' is an npm package that provides user interface components for web applications.

The specific nature of the malicious code has not been disclosed, but it poses significant security risks to applications using the package.

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.

Immediately uninstall the package and consider using an alternative UI library until a patched version is released.

As of now, there is no patched version available. Users are advised to uninstall the package until further notice.

Sponsored Lume, the Habilume companion Habilume Habit tracker with a companion that grows with you Complete habits, earn Lume Points, and watch your Lume grow as you stay consistent. App Store Google Play

How To Fix

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

npm uninstall avalon-plugin-ui

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 →

Subscribe to Vulert on Telegram
Daily digest of new CVEs, critical and high severity, affected packages and fixes — plus a weekly roundup.
Join the channel →
Help improve this record
Report an issue or send feedback