What is CVE-2020-18406?

CVE-2020-18406 is a high-severity vulnerability in Cmseasy, classified under Insufficiently Protected Credentials. CVSS score: 7.5/10. Published 2023-06-27.

How severe is CVE-2020-18406?

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

Vulnerability in Cmseasy

CVE-2020-18406

An issue was discovered in cmseasy v7.0.0 that allows user credentials to be sent in clear text due to no encryption of form data.

Published 2023-06-27 · 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: 0.004 (27.8th percentile), scored 2026-09-30.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 28th percentile — 27.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.004 · newest: 0.004 · change: 0.000

Affected products

Cmseasy — versions 7.0

Weakness classification (CWE)

CWE-522 — Insufficiently Protected Credentials

References

github.com/source-hunter/cmseasy/issues/1 (Exploit, Issue Tracking)

Frequently asked questions

What is CVE-2020-18406?: CVE-2020-18406 is a high-severity vulnerability in Cmseasy, classified under Insufficiently Protected Credentials. CVSS score: 7.5/10. Published 2023-06-27.
How severe is CVE-2020-18406?: High severity. CVSS v3 base score is 7.5 out of 10.