How severe is CVE-2021-46384?

CVE-2021-46384 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2021-46384 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (79th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-46384?

CVE-2021-46384 affects Mingsoft Mcms. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2021-46384?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.

When was CVE-2021-46384 published?

CVE-2021-46384 was published on 2022-03-04 and last updated on 2026-06-17.

CVE-2021-46384

CVE-2021-46384 is a critical-severity vulnerability in Mingsoft Mcms with a CVSS 3.x base score of 9.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-306.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
CVSS v2: 7.5
EPSS exploit prediction: 2% (79th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-306
Affected product: Mingsoft Mcms
Published: 2022-03-04
Last modified: 2026-06-17

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.

Frequently asked questions

What is CVE-2021-46384?: 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.
How severe is CVE-2021-46384?: CVE-2021-46384 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2021-46384 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (79th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-46384?: CVE-2021-46384 affects Mingsoft Mcms. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2021-46384?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
When was CVE-2021-46384 published?: CVE-2021-46384 was published on 2022-03-04 and last updated on 2026-06-17.

References

https://gitee.com/mingSoft/MCMS/issues/I4QZ1O

Affected products (1)

cpe:2.3:a:mingsoft:mcms:*:*:*:*:*:*:*:*

More vulnerabilities in Mingsoft Mcms

CVE-2025-56316 — Critical (CVSS 9.8): A SQL injection vulnerability in the content_title parameter of the /cms/content/list endpoint in MCMS 5.5.0 allows…
CVE-2025-29287 — Critical (CVSS 9.8): An arbitrary file upload vulnerability in the ueditor component of MCMS v5.4.3 allows attackers to execute arbitrary…
CVE-2023-50578 — Critical (CVSS 9.8): Mingsoft MCMS v5.2.9 was discovered to contain a SQL injection vulnerability via the categoryType parameter at…
CVE-2020-20913 — Critical (CVSS 9.8): SQL Injection vulnerability found in Ming-Soft MCMS v.4.7.2 allows a remote attacker to execute arbitrary code via…
CVE-2022-36599 — Critical (CVSS 9.8): Mingsoft MCMS 5.2.8 was discovered to contain a SQL injection vulnerability in /mdiy/model/delete URI via models Lists.
CVE-2022-36272 — Critical (CVSS 9.8): Mingsoft MCMS 5.2.8 was discovered to contain a SQL injection vulnerability in /mdiy/page/verify URI via fieldName…

All CVEs affecting Mingsoft Mcms →

Other CWE-306 (Missing Authentication for Critical Function) vulnerabilities

CVE-2026-54309 — Critical (CVSS 10.0): n8n is an open source workflow automation platform. Prior to 2.25.7 and 2.26.2, when @n8n/mcp-browser is run in HTTP…
CVE-2026-50242 — Critical (CVSS 10.0): In JetBrains Hub before 2026.1.13757, 2025.3.148033, 2025.2.148048, 2025.1.148120, 2024.3.148430, 2024.2.148429…
CVE-2026-49257 — Critical (CVSS 10.0): mcp-pinot is a Python-based Model Context Protocol (MCP) server for interacting with Apache Pinot. In versions 3.0.1…
CVE-2026-46846 — Critical (CVSS 10.0): Vulnerability in the Oracle WebCenter Portal product of Oracle Fusion Middleware (component: Security Framework).…
CVE-2026-46803 — Critical (CVSS 10.0): Vulnerability in the Oracle WebCenter Portal product of Oracle Fusion Middleware (component: Security Framework).…
CVE-2026-46800 — Critical (CVSS 10.0): Vulnerability in the Oracle WebCenter Sites product of Oracle Fusion Middleware (component: WebCenter Sites).…

Browse all CWE-306 (Missing Authentication for Critical Function) vulnerabilities →