What is CVE-2017-18475?

CVE-2017-18475 is a high-severity vulnerability in Cpanel, classified under Improper Input Validation. CVSS score: 8.8/10. Published 2019-08-05.

How severe is CVE-2017-18475?

High severity. CVSS v3 base score is 8.8 out of 10.

Improper input validation in Cpanel

CVE-2017-18475

In cPanel before 62.0.4, Exim piped filters ran in the context of an incorrect user account when delivering to a system user (SEC-204).

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

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

CVSS v3 metric

CVSS v3 base score 8.8 (High). Vector: CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.011 (63.0th percentile), scored 2026-09-30.

Low probability of exploitation in the next 30 days, but still tracked. 63rd percentile — 63.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.011 · newest: 0.011 · 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-2017-18475?: CVE-2017-18475 is a high-severity vulnerability in Cpanel, classified under Improper Input Validation. CVSS score: 8.8/10. Published 2019-08-05.
How severe is CVE-2017-18475?: High severity. CVSS v3 base score is 8.8 out of 10.