What is CVE-2026-2666?

CVE-2026-2666 is a medium-severity vulnerability in Mingsoft Mcms, classified under Improper Access Control. CVSS score: 4.7/10. Published 2026-02-18.

How severe is CVE-2026-2666?

Medium severity. CVSS v3 base score is 4.7 out of 10.

Arbitrary file upload in Mingsoft Mcms

CVE-2026-2666

A flaw has been found in mingSoft MCMS 6.1.1. The affected element is an unknown function of the file /ms/file/uploadTemplate.do of the component Template Archive Handler. Executing a manipulation of the argument File can lead to unrestricted upload. The attack can be launched remotely. The exploit has been published and may be used.

EPSS: 0.004 (28.8th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 4.7 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:L.

Affected products

Mingsoft Mcms — versions 6.1.1

Weakness classification (CWE)

References

cna@vuldb.com (technical-description, VDB Entry, Third Party Advisory, vdb-entry)
cna@vuldb.com (signature, Permissions Required, permissions-required, VDB Entry)
cna@vuldb.com (VDB Entry, Third Party Advisory, third-party-advisory)
cna@vuldb.com (issue-tracking, Exploit, Issue Tracking)
cna@vuldb.com (issue-tracking, Exploit, exploit, Issue Tracking)

Frequently asked questions

What is CVE-2026-2666?: CVE-2026-2666 is a medium-severity vulnerability in Mingsoft Mcms, classified under Improper Access Control. CVSS score: 4.7/10. Published 2026-02-18.
How severe is CVE-2026-2666?: Medium severity. CVSS v3 base score is 4.7 out of 10.