What is CVE-2020-19672?

CVE-2020-19672 is a critical-severity vulnerability in Niushop, classified under Unrestricted Upload of File with Dangerous Type. CVSS score: 9.8/10. Published 2020-09-30.

How severe is CVE-2020-19672?

Critical severity. CVSS v3 base score is 9.8 out of 10.

Arbitrary file upload in Niushop

CVE-2020-19672

Niushop B2B2C Multi-business basic version V1.11, can bypass the administrator to obtain the background upload interface, through parameter upload, bypass the getimagesize function, upload php file, getshell.

Vulnerability class: Unrestricted File Upload

Published 2020-09-30 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.013 (70.4th percentile), scored 2026-09-30.

Low probability of exploitation in the next 30 days, but still tracked. 70th percentile — 70.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.013 · newest: 0.013 · change: 0.000

Affected products

Niushop — versions 1.11

Weakness classification (CWE)

CWE-434 — Unrestricted Upload of File with Dangerous Type

References

github.com/bluecity/CMS/blob/master/niushop v1.1-upload/Niushop Multi-business… (Exploit, Third Party Advisory)

Frequently asked questions

What is CVE-2020-19672?: CVE-2020-19672 is a critical-severity vulnerability in Niushop, classified under Unrestricted Upload of File with Dangerous Type. CVSS score: 9.8/10. Published 2020-09-30.
How severe is CVE-2020-19672?: Critical severity. CVSS v3 base score is 9.8 out of 10.