What is CVE-2018-20870?

CVE-2018-20870 is a medium-severity vulnerability in Cpanel, classified under Information Disclosure. CVSS score: 5.5/10. Published 2019-07-30.

How severe is CVE-2018-20870?

Medium severity. CVSS v3 base score is 5.5 out of 10.

Information disclosure in Cpanel

CVE-2018-20870

The WebDAV transport feature in cPanel before 76.0.8 enables debug logging (SEC-467).

Vulnerability class: Information Disclosure

Published 2019-07-30 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N.

EPSS exploit prediction

EPSS: 0.004 (33.3th percentile), scored 2026-09-30.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 33rd percentile — 33.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.004 · newest: 0.004 · change: 0.000

Affected products

Cpanel

Weakness classification (CWE)

CWE-200 — Information Disclosure

References

documentation.cpanel.net/display/CL/76+Change+Log (Release Notes, Vendor Advisory)

Frequently asked questions

What is CVE-2018-20870?: CVE-2018-20870 is a medium-severity vulnerability in Cpanel, classified under Information Disclosure. CVSS score: 5.5/10. Published 2019-07-30.
How severe is CVE-2018-20870?: Medium severity. CVSS v3 base score is 5.5 out of 10.