What is CVE-2020-19670?

CVE-2020-19670 is a medium-severity vulnerability in Niushop, classified under Missing Authentication for Critical Function. CVSS score: 4.9/10. Published 2020-09-30.

How severe is CVE-2020-19670?

Medium severity. CVSS v3 base score is 4.9 out of 10.

Auth bypass in Niushop

CVE-2020-19670

In Niushop B2B2C Multi-Business Basic Edition V1.11, authentication can be bypassed, causing administrators to reset any passwords.

Vulnerability class: Broken Authentication

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

CVSS v3 metric

CVSS v3 base score 4.9 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:N.

EPSS exploit prediction

EPSS: 0.009 (57.3th percentile), scored 2026-09-30.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 57th percentile — 57.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.009 · newest: 0.009 · change: 0.000

Affected products

Niushop — versions 1.11

Weakness classification (CWE)

CWE-306 — Missing Authentication for Critical Function

References

github.com/bluecity/CMS/blob/master/niushop v1.11-passwd/Niushop V1.11.md (Exploit, Third Party Advisory)

Frequently asked questions

What is CVE-2020-19670?: CVE-2020-19670 is a medium-severity vulnerability in Niushop, classified under Missing Authentication for Critical Function. CVSS score: 4.9/10. Published 2020-09-30.
How severe is CVE-2020-19670?: Medium severity. CVSS v3 base score is 4.9 out of 10.