What is CVE-2021-42334?

CVE-2021-42334 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-2021-42334?

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

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

CVE-2021-42334

The Easytest contains SQL injection vulnerabilities. After obtaining a user’s privilege, remote attackers can inject SQL commands into the parameters of the elective course management page to obtain all database and 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-132-5204-f80ad-1.html (Third Party Advisory)

Frequently asked questions

What is CVE-2021-42334?: CVE-2021-42334 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-2021-42334?: High severity. CVSS v3 base score is 8.8 out of 10.