What is CVE-2020-21180?

CVE-2020-21180 is a critical-severity vulnerability in Koa2-Blog Project, classified under SQL Injection. CVSS score: 9.8/10. Published 2021-02-01.

How severe is CVE-2020-21180?

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

SQL Injection in Koa2-Blog Project

CVE-2020-21180

Sql injection vulnerability in koa2-blog 1.0.0 allows remote attackers to Injecting a malicious SQL statement via the name parameter to the signup page.

Vulnerability class: SQL Injection

Published 2021-02-01 · 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 2026-10-03.

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

Koa2-Blog Project — versions 1.0.0

Weakness classification (CWE)

CWE-89 — SQL Injection

References

github.com/wclimb/Koa2-blog/issues/41 (Exploit, Third Party Advisory)

Frequently asked questions

What is CVE-2020-21180?: CVE-2020-21180 is a critical-severity vulnerability in Koa2-Blog Project, classified under SQL Injection. CVSS score: 9.8/10. Published 2021-02-01.
How severe is CVE-2020-21180?: Critical severity. CVSS v3 base score is 9.8 out of 10.