CVE-2021-46386 json
Mingsoft MCMS vulnerable to Remote Code Execution via file upload.
published 2022-01-26 4 y ago modified 2026-06-17 4 mo ago also GHSA-cwx9-rp4w-4545 , EUVD-2022-0571
- cvss
- 9.8
- version 3.1, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 3.1%
- EPSS 3.1% chance of exploitation in 30 days, percentile 87%
- public exploits
- 0
- none known
Summary
File upload vulnerability in mingSoft MCMS through 5.2.5, allows remote attackers to execute arbitrary code via a crafted jspx webshell to net.mingsoft.basic.action.web.FileAction#upload.
Exploit prediction
3.11% chance of exploitation in the next 30 days, higher than 87% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- gitee.com https://gitee.com/mingSoft/MCMS/issues/I4R0GW referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.1 | 9.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| NVD | 2.0 | 7.5 | AV:N/AC:L/Au:N/C:P/I:P/A:P |
| GitHub | 3.1 | 9.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| maven | net.mingsoft:ms-mcms | <=5.2.5 |
no fix listed |
Classification
- Weakness
-
- CWE-434 Unrestricted Upload of File with Dangerous Type
References
-
gitee.com
/mingSoft/MCMS/issues/I4R0GW
web, exploit, issue-tracking, third-party-advisory
-
nvd.nist.gov
/vuln/detail/CVE-2021-46386
advisory
-
gitee.com
/mingSoft/MCMS
package
-
github.com
/ming-soft/MCMS
web
Sources
- CVE List CVE-2021-46386
- GitHub Advisory GHSA-cwx9-rp4w-4545
- NVD CVE-2021-46386
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.