What is CVE-2016-10859?

CVE-2016-10859 is a high-severity vulnerability in Cpanel, classified under Improper Authorization. CVSS score: 8.1/10. Published 2019-08-01.

How severe is CVE-2016-10859?

High severity. CVSS v3 base score is 8.1 out of 10.

Auth bypass in Cpanel

CVE-2016-10859

cPanel before 11.54.0.0 allows unauthorized password changes via Webmail API commands (SEC-65).

Published 2019-08-01 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 8.1 (High). Vector: CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N.

EPSS exploit prediction

EPSS: 0.010 (62.5th percentile), scored 2026-09-29.

Low probability of exploitation in the next 30 days, but still tracked. 62nd percentile — 62.5% 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

Cpanel

Weakness classification (CWE)

CWE-285 — Improper Authorization

References

documentation.cpanel.net/display/CL/54+Change+Log (Release Notes, Vendor Advisory)
news.cpanel.com/cpanel-tsr-2015-0006-full-disclosure/ (Vendor Advisory)

Frequently asked questions

What is CVE-2016-10859?: CVE-2016-10859 is a high-severity vulnerability in Cpanel, classified under Improper Authorization. CVSS score: 8.1/10. Published 2019-08-01.
How severe is CVE-2016-10859?: High severity. CVSS v3 base score is 8.1 out of 10.