CVE-2021-46384 Remote code execution in net.mingsoft:ms-mcms

What is CVE-2021-46384?

CVE-2021-46384 is a critical code injection vulnerability in n/a, published on 4 Mar 2022. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

https://gitee.com/mingSoft/MCMS MCMS <=5.2.5 is affected by: RCE. The impact is: execute arbitrary code (remote). The attack vector is: ${"freemarker.template.utility.Execute"?new()("calc")}. ¶¶ MCMS has a pre-auth RCE vulnerability through which allows unauthenticated attacker with network access via http to compromise MCMS. Successful attacks of this vulnerability can result in takeover of MCMS.

Weakness: CWE-306

Which versions are affected by CVE-2021-46384?

2 open source packages ship an affected version, including net.mingsoft:ms-mcms. It affects 1 product.

Products include Mingsoft Mcms.

How do I fix CVE-2021-46384?

Upgrade net.mingsoft:ms-mcms to 5.2.6 or later.

Upgrade, and never evaluate templates, expressions or code built from user input. More about Code injection.

Is CVE-2021-46384 being exploited?

There is no known exploitation of CVE-2021-46384 in the wild and no public exploit code.

Other vulnerabilities in n/a

• CVE-2025-56316 MCMS vulnerable SQL injection via the content_title parameter Critical 9.8
• CVE-2025-29287 MCMS allows arbitrary file uploads in the ueditor component Critical 9.8
• CVE-2023-50578 Mingsoft MCMS SQL injection Critical 9.8
• CVE-2020-20913 Ming-Soft MCMS vulnerable to SQL injection Critical 9.8
• CVE-2022-36272 Mingsoft MCMS SQL injection vulnerability in /mdiy/page/verify URI via fieldName parameter Critical 9.8

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as GHSA-qwh6-xwj4-9cjg.