What is CVE-2017-18455?

CVE-2017-18455 is a low-severity vulnerability in Cpanel, classified under CWE-264. CVSS score: 2.7/10. Published 2019-08-02.

How severe is CVE-2017-18455?

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

Vulnerability in Cpanel

CVE-2017-18455

In cPanel before 62.0.17, addon domain conversion did not require a package for resellers (SEC-208).

Published 2019-08-02 · 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:N/A:L.

EPSS exploit prediction

EPSS: 0.008 (55.7th percentile), scored 2026-09-30.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 56th percentile — 55.7% 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-264

References

documentation.cpanel.net/display/CL/62+Change+Log (Product, Release Notes)
news.cpanel.com/cpanel-tsr-2017-0002-full-disclosure/ (Vendor Advisory)

Frequently asked questions

What is CVE-2017-18455?: CVE-2017-18455 is a low-severity vulnerability in Cpanel, classified under CWE-264. CVSS score: 2.7/10. Published 2019-08-02.
How severe is CVE-2017-18455?: Low severity. CVSS v3 base score is 2.7 out of 10.