What is CVE-2018-20927?

CVE-2018-20927 is a low-severity vulnerability in Cpanel, classified under Improper Authorization. CVSS score: 3.8/10. Published 2019-08-01.

How severe is CVE-2018-20927?

Low severity. CVSS v3 base score is 3.8 out of 10.

Auth bypass in Cpanel

CVE-2018-20927

cPanel before 70.0.23 allows jailshell escape because of incorrect crontab parsing (SEC-382).

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

CVSS v3 metric

CVSS v3 base score 3.8 (Low). Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:C/C:L/I:N/A:N.

EPSS exploit prediction

EPSS: 0.003 (23.0th percentile), scored 2026-09-30.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 23rd percentile — 23.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.003 · newest: 0.003 · change: 0.000

Affected products

Cpanel

Weakness classification (CWE)

CWE-285 — Improper Authorization

References

documentation.cpanel.net/display/CL/70+Change+Log (Release Notes, Vendor Advisory)

Frequently asked questions

What is CVE-2018-20927?: CVE-2018-20927 is a low-severity vulnerability in Cpanel, classified under Improper Authorization. CVSS score: 3.8/10. Published 2019-08-01.
How severe is CVE-2018-20927?: Low severity. CVSS v3 base score is 3.8 out of 10.