CVE-2026-66599: Liquid Web / Stellarwp Wpcomplete

High severity, CVSS 7.1. EPSS: 0.3% chance of exploitation in the next 30 days.

Unauthenticated Cross Site Scripting (XSS) in WPComplete <= 2.9.5.6 versions.

Affected products

• Liquid Web / Stellarwp Wpcomplete: up to and including 2.9.5.6

Published 2026-08-24. Last modified 2026-08-24.