What is CVE-2024-42991?

CVE-2024-42991 is a high-severity vulnerability in Mingsoft Mcms, classified under Unrestricted Upload of File with Dangerous Type. CVSS score: 8.1/10. Published 2024-09-03.

How severe is CVE-2024-42991?

High severity. CVSS v3 base score is 8.1 out of 10.

Arbitrary file upload in Mingsoft Mcms

CVE-2024-42991

MCMS v5.4.1 has front-end file upload vulnerability which can lead to remote command execution.

Vulnerability class: Unrestricted File Upload

Published 2024-09-03 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 8.1 (High). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.008 (55.4th percentile), scored 2026-10-07.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 55th percentile — 55.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.008 · newest: 0.008 · change: 0.000

Affected products

Mingsoft Mcms — versions 5.4.1

Weakness classification (CWE)

CWE-434 — Unrestricted Upload of File with Dangerous Type

References

gitee.com/mingSoft/MCMS/issues/IAHN9F (Exploit, Third Party Advisory)

Frequently asked questions

What is CVE-2024-42991?: CVE-2024-42991 is a high-severity vulnerability in Mingsoft Mcms, classified under Unrestricted Upload of File with Dangerous Type. CVSS score: 8.1/10. Published 2024-09-03.
How severe is CVE-2024-42991?: High severity. CVSS v3 base score is 8.1 out of 10.