CVE-2026-66590: Tagembed

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

Unauthenticated Cross Site Scripting (XSS) in Tagembed <= 7.4 versions.

Affected products

• Tagembed Tagembed: up to and including 7.4

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