CVE-2018-20921: cPanel

Medium severity, CVSS 6.1. EPSS: 0.6% chance of exploitation in the next 30 days.

cPanel before 70.0.23 allows stored XSS via a WHM "Delete a DNS Zone" action (SEC-375).

Affected products

• cPanel cPanel: before 70.0.23 (fixed in 70.0.23)

Published 2019-08-01. Last modified 2026-06-17.