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Vulnerability details: VCID-ggj3-wf7f-cffw
Vulnerability ID VCID-ggj3-wf7f-cffw
Aliases CVE-2021-46384
GHSA-qwh6-xwj4-9cjg
Summary Improper Authentication 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.
Status Published
Exploitability 0.5
Weighted Severity 9.0
Risk 4.5
Affected and Fixed Packages Package Details
Weaknesses (4)
CWE-1035 OWASP Top Ten 2017 Category A9 - Using Components with Known Vulnerabilities
CWE-287 Improper Authentication
CWE-78 Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
CWE-937 OWASP Top Ten 2013 Category A9 - Using Components with Known Vulnerabilities
System Score Found at
epss 0.12262 https://api.first.org/data/v1/epss?cve=CVE-2021-46384
epss 0.12262 https://api.first.org/data/v1/epss?cve=CVE-2021-46384
epss 0.12262 https://api.first.org/data/v1/epss?cve=CVE-2021-46384
cvssv3.1 9.8 https://gitee.com/mingSoft/MCMS/issues/I4QZ1O
generic_textual CRITICAL https://gitee.com/mingSoft/MCMS/issues/I4QZ1O
cvssv3.1_qr CRITICAL https://github.com/advisories/GHSA-qwh6-xwj4-9cjg
cvssv3.1 9.8 https://nvd.nist.gov/vuln/detail/CVE-2021-46384
generic_textual CRITICAL https://nvd.nist.gov/vuln/detail/CVE-2021-46384
Reference id Reference type URL
https://api.first.org/data/v1/epss?cve=CVE-2021-46384
https://gitee.com/mingSoft/MCMS/issues/I4QZ1O
CVE-2021-46384 https://nvd.nist.gov/vuln/detail/CVE-2021-46384
GHSA-qwh6-xwj4-9cjg https://github.com/advisories/GHSA-qwh6-xwj4-9cjg
No exploits are available.
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Found at https://gitee.com/mingSoft/MCMS/issues/I4QZ1O
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Found at https://nvd.nist.gov/vuln/detail/CVE-2021-46384
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Exploit Prediction Scoring System (EPSS)
Percentile 0.93987
EPSS Score 0.12262
Published At June 4, 2026, 12:55 p.m.
Date Actor Action Source VulnerableCode Version
2026-06-02T04:41:44.255550+00:00 GitLab Importer Import https://gitlab.com/gitlab-org/advisories-community/-/blob/main/maven/net.mingsoft/ms-mcms/CVE-2021-46384.yml 38.6.0