CVE-2019-20493: cPanel

Medium severity, CVSS 6.1. EPSS: 0.7% chance of exploitation in the next 30 days.

cPanel before 82.0.18 allows self-XSS because JSON string escaping is mishandled (SEC-520).

Affected products

• cPanel cPanel: from 77.9999.110, before 78.0.43 (fixed in 78.0.43); from 81.9999.242, before 82.0.18 (fixed in 82.0.18); from 83.9999.115, before 84.0.10 (fixed in 84.0.10)

Published 2020-03-17. Last modified 2026-06-17.