What is CVE-2018-20896?

CVE-2018-20896 is a low-severity vulnerability in Cpanel, classified under Code Injection. CVSS score: 3.9/10. Published 2019-08-01.

How severe is CVE-2018-20896?

Low severity. CVSS v3 base score is 3.9 out of 10.

RCE in Cpanel

CVE-2018-20896

cPanel before 71.9980.37 allows code injection in the WHM cPAddons interface (SEC-394).

Vulnerability class: RCE (Remote Code Execution)

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

CVSS v3 metric

CVSS v3 base score 3.9 (Low). Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:R/S:U/C:N/I:L/A:L.

EPSS exploit prediction

EPSS: 0.004 (33.0th percentile), scored 2026-09-30.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 33rd percentile — 33.0% 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-94 — Code Injection

References

documentation.cpanel.net/display/CL/72+Change+Log (Product, Release Notes)
news.cpanel.com/cpanel-tsr-2018-0003-full-disclosure/ (Vendor Advisory)

Frequently asked questions

What is CVE-2018-20896?: CVE-2018-20896 is a low-severity vulnerability in Cpanel, classified under Code Injection. CVSS score: 3.9/10. Published 2019-08-01.
How severe is CVE-2018-20896?: Low severity. CVSS v3 base score is 3.9 out of 10.