What is CVE-2017-18466?

CVE-2017-18466 is a low-severity vulnerability in Cpanel, classified under Improper Input Validation. CVSS score: 2.7/10. Published 2019-08-05.

How severe is CVE-2017-18466?

Low severity. CVSS v3 base score is 2.7 out of 10.

Improper input validation in Cpanel

CVE-2017-18466

cPanel before 62.0.17 does not properly recognize domain ownership during addition of parked domains to a mail configuration (SEC-228).

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

Published 2019-08-05 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 2.7 (Low). Vector: CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:L/A:N.

EPSS exploit prediction

EPSS: 0.006 (47.8th percentile), scored 2026-09-30.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 48th percentile — 47.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.006 · newest: 0.006 · change: 0.000

Affected products

Cpanel

Weakness classification (CWE)

CWE-20 — Improper Input Validation

References

documentation.cpanel.net/display/CL/62+Change+Log (Release Notes, Vendor Advisory)

Frequently asked questions

What is CVE-2017-18466?: CVE-2017-18466 is a low-severity vulnerability in Cpanel, classified under Improper Input Validation. CVSS score: 2.7/10. Published 2019-08-05.
How severe is CVE-2017-18466?: Low severity. CVSS v3 base score is 2.7 out of 10.