CVE-2026-28177: Daniel Iser Popup Maker

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

Unauthenticated Cross Site Scripting (XSS) in Popup Maker <= 1.23.0 versions.

Affected products

• Daniel Iser Popup Maker: up to and including 1.23.0

Published 2026-08-06. Last modified 2026-08-12.