CVE-2026-66598: Kingtech Llc b2bking Premium

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

Unauthenticated Cross Site Scripting (XSS) in B2BKing Premium <= 5.6.07 versions.

Affected products

• Kingtech Llc b2bking Premium: up to and including 5.6.07

Published 2026-08-20. Last modified 2026-08-20.