What is CVE-2021-22857?

CVE-2021-22857 is a high-severity vulnerability in Changate Enterprise Co., Ltd Property Management System, classified under Path Traversal. CVSS score: 7.5/10. Published 2021-02-17.

How severe is CVE-2021-22857?

High severity. CVSS v3 base score is 7.5 out of 10.

Path Traversal in Changate Enterprise Co., Ltd Property Management System

CVE-2021-22857

The CGE page with download function contains a Directory Traversal vulnerability. Attackers can use this loophole to download system files arbitrarily.

Vulnerability class: Path Traversal (Directory Traversal)

Published 2021-02-17 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N.

EPSS exploit prediction

EPSS: 0.018 (78.3th percentile), scored 2026-10-07.

Low probability of exploitation in the next 30 days, but still tracked. 78th percentile — 78.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.018 · newest: 0.018 · 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-22 — Path Traversal

References

www.twcert.org.tw/tw/cp-132-4395-c01f7-1.html (Third Party Advisory)
www.chtsecurity.com/news/fe1e30ef-4dac-4848-a3c9-a7df12672422 (Third Party Advisory)

Frequently asked questions

What is CVE-2021-22857?: CVE-2021-22857 is a high-severity vulnerability in Changate Enterprise Co., Ltd Property Management System, classified under Path Traversal. CVSS score: 7.5/10. Published 2021-02-17.
How severe is CVE-2021-22857?: High severity. CVSS v3 base score is 7.5 out of 10.