CVE-2021-46063: Server Side Template Injection in MCMS

net.mingsoft:ms-mcms Updated 02 Oct 2025

Summary

19/02/2022

Disclosed on

CVE-2021-46063

CVE

No i

Fix available

Critical

Severity

9.1

CVSS Score

CVE-2021-46063: Server Side Template Injection in MCMS. Affects net.mingsoft:ms-mcms versions < 5.2.5. 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 Browse

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.

Background

MCMS is a Maven package developed by net.mingsoft. It is a Template Management module used for managing templates in web applications. MCMS v5.2.5 has been identified to contain a critical Server Side Template Injection (SSTI) vulnerability.

Vulnerability Detail

The Server Side Template Injection (SSTI) vulnerability in MCMS v5.2.5 allows an attacker to inject malicious code into server-side templates. This can lead to remote code execution, enabling the attacker to execute arbitrary commands on the server. The vulnerability has a CVSS score of 9.1, indicating its high severity. The CWE-74 vulnerability category is associated with this issue.

How To Fix

No fixed version is published for this vulnerability.

Tip — Not sure whether your app is affected? Vulert can check the versions your app actually runs. Scan free →

Workaround

There is no known workaround for this vulnerability. It is crucial to apply the recommended fix by upgrading to a non-vulnerable version of MCMS.

Conclusion

MCMS v5.2.5 is affected by a critical Server Side Template Injection (SSTI) vulnerability. It is recommended to upgrade to a non-vulnerable version of MCMS and update your project's Maven configuration. For further support on vulnerability remediation, contact DevNack.com.

See every vulnerability recorded for net.mingsoft:ms-mcms →