CVE-2021-46063 Server Side Template Injection in MCMS
An attacker can execute arbitrary code via Server Side Template Injection in the MCMS Template Management module.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2021-46063?
CVE-2021-46063 is a critical code injection vulnerability in n/a, published on 18 Feb 2022. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
MCMS v5.2.5 was discovered to contain a Server Side Template Injection (SSTI) vulnerability via the Template Management module.
Weakness: CWE-94
Which versions are affected by CVE-2021-46063?
2 open source packages ship an affected version, including net.mingsoft:ms-mcms. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
net.mingsoft:ms-mcms Maven | All versions to 5.2.5 | None |
net.mingsoft:ms-mcms Maven | All versions to 5.2.5 | None |
Products include Mingsoft Mcms.
How do I fix CVE-2021-46063?
No fix has been published for CVE-2021-46063 yet. Limit exposure of the affected software until one is available.
Upgrade, and never evaluate templates, expressions or code built from user input. More about Code injection.
Is CVE-2021-46063 being exploited?
There is no known exploitation of CVE-2021-46063 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
- CVE-2025-29287 MCMS allows arbitrary file uploads in the ueditor component
- CVE-2023-50578 Mingsoft MCMS SQL injection
- CVE-2020-20913 Ming-Soft MCMS vulnerable to SQL injection
- CVE-2022-36272 Mingsoft MCMS SQL injection vulnerability in /mdiy/page/verify URI via fieldName parameter
Sources
Also known as GHSA-gc79-gh4f-9g6w.