What is CVE-2021-22856?

CVE-2021-22856 is a critical-severity vulnerability in Changate Enterprise Co., Ltd Property Management System, classified under SQL Injection. CVSS score: 9.8/10. Published 2021-02-17.

How severe is CVE-2021-22856?

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

SQL Injection in Changate Enterprise Co., Ltd Property Management System

CVE-2021-22856

The CGE property management system contains SQL Injection vulnerabilities. Remote attackers can inject SQL commands into the parameters in Cookie and obtain data in the database without privilege.

Vulnerability class: SQL Injection

Published 2021-02-17 · 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: 0.015 (72.9th percentile), scored 2026-10-07.

Low probability of exploitation in the next 30 days, but still tracked. 73rd percentile — 72.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.014 · newest: 0.015 · change: +0.001

Affected products

Changate Enterprise Co., Ltd Property Management System — versions 0
Changjia Property Management System Project — versions 1.00

Weakness classification (CWE)

CWE-89 — SQL Injection

References

www.twcert.org.tw/tw/cp-132-4394-76d41-1.html (Third Party Advisory)
www.chtsecurity.com/news/fe1e30ef-4dac-4848-a3c9-a7df12672422 (Third Party Advisory)

Frequently asked questions

What is CVE-2021-22856?: CVE-2021-22856 is a critical-severity vulnerability in Changate Enterprise Co., Ltd Property Management System, classified under SQL Injection. CVSS score: 9.8/10. Published 2021-02-17.
How severe is CVE-2021-22856?: Critical severity. CVSS v3 base score is 9.8 out of 10.