What is CVE-2021-42333?

CVE-2021-42333 is a high-severity vulnerability in Huachu Digital Technology Co.,ltd. Easytest, classified under SQL Injection. CVSS score: 8.8/10. Published 2021-10-15.

How severe is CVE-2021-42333?

High severity. CVSS v3 base score is 8.8 out of 10.

SQL Injection in Huachu Digital Technology Co.,ltd. Easytest

CVE-2021-42333

The Easytest contains SQL injection vulnerabilities. After obtaining user’s privilege, remote attackers can inject SQL commands into the parameters of the learning history page to access all database and obtain administrator permissions.

Vulnerability class: SQL Injection

Published 2021-10-15 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.011 (65.1th percentile), scored 2026-10-05.

Low probability of exploitation in the next 30 days, but still tracked. 65th percentile — 65.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.011 · newest: 0.011 · change: 0.000

Affected products

Huachu Digital Technology Co.,ltd. Easytest — versions 1705
Huaju Easytest Online Learning Test Platform — versions 1705

Weakness classification (CWE)

CWE-89 — SQL Injection

References

www.twcert.org.tw/tw/cp-132-5203-00de8-1.html (Third Party Advisory)

Frequently asked questions

What is CVE-2021-42333?: CVE-2021-42333 is a high-severity vulnerability in Huachu Digital Technology Co.,ltd. Easytest, classified under SQL Injection. CVSS score: 8.8/10. Published 2021-10-15.
How severe is CVE-2021-42333?: High severity. CVSS v3 base score is 8.8 out of 10.