What is CVE-2018-20567?

CVE-2018-20567 is a medium-severity vulnerability in Douco Douphp, classified under Incorrect Permission Assignment for Critical Resource. CVSS score: 5.3/10. Published 2018-12-28.

How severe is CVE-2018-20567?

Medium severity. CVSS v3 base score is 5.3 out of 10.

Vulnerability in Douco Douphp

CVE-2018-20567

An issue was discovered in DouCo DouPHP 1.5 20181221. \install\index.php allows a reload of the product in opportunistic circumstances in which install.lock cannot be read.

Published 2018-12-28 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L.

EPSS exploit prediction

EPSS: 0.010 (62.4th percentile), scored 2026-09-30.

Low probability of exploitation in the next 30 days, but still tracked. 62nd percentile — 62.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.010 · newest: 0.010 · change: 0.000

Affected products

Douco Douphp — versions 1.5

Weakness classification (CWE)

CWE-732 — Incorrect Permission Assignment for Critical Resource

References

github.com/AvaterXXX/CVEs/blob/master/DouPHP.md (Exploit, Third Party Advisory)

Frequently asked questions

What is CVE-2018-20567?: CVE-2018-20567 is a medium-severity vulnerability in Douco Douphp, classified under Incorrect Permission Assignment for Critical Resource. CVSS score: 5.3/10. Published 2018-12-28.
How severe is CVE-2018-20567?: Medium severity. CVSS v3 base score is 5.3 out of 10.