CVE-2017-18456: cPanel

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

cPanel before 62.0.17 allows self XSS in the WHM cPAddons showsecurity interface (SEC-217).

Affected products

• cPanel cPanel: from 55.9999.61, before 56.0.46 (fixed in 56.0.46); from 57.9999.48, before 58.0.45 (fixed in 58.0.45); from 59.9999.58, before 60.0.39 (fixed in 60.0.39); from 61.9999.55, before 62.0.17 (fixed in 62.0.17)

Published 2019-08-02. Last modified 2026-06-17.