CVE-2018-20150: Debian Linux

Medium severity, CVSS 6.1. EPSS: 4.2% chance of exploitation in the next 30 days.

In WordPress before 4.9.9 and 5.x before 5.0.1, crafted URLs could trigger XSS for certain use cases involving plugins.

Affected products

• Debian Debian Linux: version 8.0 only; version 9.0 only
• WordPress WordPress: before 4.9.9 (fixed in 4.9.9); from 5.0, before 5.0.1 (fixed in 5.0.1)

Published 2018-12-14. Last modified 2026-06-17.