What is CVE-2020-5680?

CVE-2020-5680 is a high-severity vulnerability in Ec-Cube, classified under Improper Input Validation. CVSS score: 7.5/10. Published 2020-12-03.

How severe is CVE-2020-5680?

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

Improper input validation in Ec-Cube

CVE-2020-5680

Improper input validation vulnerability in EC-CUBE versions from 3.0.5 to 3.0.18 allows a remote attacker to cause a denial-of-service (DoS) condition via unspecified vector.

Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)

Published 2020-12-03 · 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:N/I:N/A:H.

EPSS exploit prediction

EPSS: 0.014 (71.2th percentile), scored 2026-10-03.

Low probability of exploitation in the next 30 days, but still tracked. 71st percentile — 71.2% 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: 0.014 · change: 0.000

Affected products

Ec-Cube
Ec-Cube Co.,ltd. — versions versions from 3.0.5 to 3.0.18

Weakness classification (CWE)

CWE-20 — Improper Input Validation

References

www.ec-cube.net/info/weakness/ (Vendor Advisory)
jvn.jp/en/jp/JVN24457594/index.html (Third Party Advisory)

Frequently asked questions

What is CVE-2020-5680?: CVE-2020-5680 is a high-severity vulnerability in Ec-Cube, classified under Improper Input Validation. CVSS score: 7.5/10. Published 2020-12-03.
How severe is CVE-2020-5680?: High severity. CVSS v3 base score is 7.5 out of 10.