What is CVE-2017-18414?

CVE-2017-18414 is a high-severity vulnerability in Cpanel, classified under URL Redirection to Untrusted Site (Open Redirect). CVSS score: 7.4/10. Published 2019-08-02.

How severe is CVE-2017-18414?

High severity. CVSS v3 base score is 7.4 out of 10.

Open Redirect in Cpanel

CVE-2017-18414

cPanel before 67.9999.103 allows an open redirect in /unprotected/redirect.html (SEC-300).

Vulnerability class: Open Redirect

Published 2019-08-02 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 7.4 (High). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:N/I:H/A:N.

EPSS exploit prediction

EPSS: 0.008 (55.0th percentile), scored 2026-09-30.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 55th percentile — 55.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.008 · newest: 0.008 · change: 0.000

Affected products

Cpanel

Weakness classification (CWE)

CWE-601 — URL Redirection to Untrusted Site (Open Redirect)

References

documentation.cpanel.net/display/CL/68+Change+Log (Release Notes, Vendor Advisory)
news.cpanel.com/cpanel-tsr-2017-0005-full-disclosure/ (Vendor Advisory)

Frequently asked questions

What is CVE-2017-18414?: CVE-2017-18414 is a high-severity vulnerability in Cpanel, classified under URL Redirection to Untrusted Site (Open Redirect). CVSS score: 7.4/10. Published 2019-08-02.
How severe is CVE-2017-18414?: High severity. CVSS v3 base score is 7.4 out of 10.