What is CVE-2019-20498?

CVE-2019-20498 is a critical-severity vulnerability in Cpanel. CVSS score: 9.8/10. Published 2020-03-17.

How severe is CVE-2019-20498?

Critical severity. CVSS v3 base score is 9.8 out of 10.

Vulnerability in Cpanel

CVE-2019-20498

cPanel before 82.0.18 allows WebDAV authentication bypass because the connection-sharing logic is incorrect (SEC-534).

Published 2020-03-17 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.016 (74.8th percentile), scored 2026-09-30.

Low probability of exploitation in the next 30 days, but still tracked. 75th percentile — 74.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.016 · newest: 0.016 · change: 0.000

Affected products

Cpanel

References

documentation.cpanel.net/display/CL/82+Change+Log (Vendor Advisory)

Frequently asked questions

What is CVE-2019-20498?: CVE-2019-20498 is a critical-severity vulnerability in Cpanel. CVSS score: 9.8/10. Published 2020-03-17.
How severe is CVE-2019-20498?: Critical severity. CVSS v3 base score is 9.8 out of 10.