Critical Malicious Code Vulnerability in @quick-start-soft/quick-markdown-compose Package

Summary

24/11/2025
CRITICAL
No i
Critical
Not published

MAL-2025-190822: Malicious code in @quick-start-soft/quick-markdown-compose (npm). Affects @quick-start-soft/quick-markdown-compose versions 1.4.2506300029. 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 MarkAI Find prospects already talking about the problem you solve AI watches the communities your customers use to find qualified prospects, then alerts you when a conversation is worth joining. See MarkAI

Background

The @quick-start-soft/quick-markdown-compose package is a tool designed for composing markdown documents in a simplified manner, primarily used in JavaScript and Node.js environments. It allows developers to create and manage markdown files efficiently. However, this package has been identified to contain malicious code, posing a significant risk to users who have it installed.

Vulnerability Detail

The vulnerability originates from the inclusion of malicious code within the @quick-start-soft/quick-markdown-compose package. This code can compromise any computer that has the package installed, potentially allowing unauthorized access to sensitive information, such as secrets and keys stored on the affected system. The malicious nature of the code is classified under CWE-506, indicating that it contains embedded malicious code. Users are advised to treat any system running this package as fully compromised.

How To Fix

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

npm uninstall @quick-start-soft/quick-markdown-compose

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

There are no effective workarounds to mitigate the risks associated with this vulnerability. The only safe course of action is to uninstall the package and secure your system.

Conclusion

The @quick-start-soft/quick-markdown-compose package has been identified as containing malicious code, posing serious security risks to users. Immediate action is required to uninstall the package and secure any sensitive information. Utilizing tools like Vulert can help in monitoring for such vulnerabilities in the future.

See every vulnerability recorded for @quick-start-soft/quick-markdown-compose →

Share this vulnerability

FAQ

You should immediately uninstall the package and rotate any secrets or keys stored on your system.

You can use Vulert, which monitors and alerts for open-source vulnerabilities in real-time. Visit Vulert Scanner to check your application without needing to sign up.

Having this package installed can lead to unauthorized access to sensitive information and complete compromise of your system.

As of now, there is no patch available. The recommended action is to uninstall the package.

Regularly monitor your dependencies using tools like Vulert and keep your packages updated to the latest versions.

How To Fix

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

npm uninstall @quick-start-soft/quick-markdown-compose

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