CVE-2021-33611: Vaadin

Medium severity, CVSS 6.1. EPSS: 1% chance of exploitation in the next 30 days.

Missing output sanitization in test sources in org.webjars.bowergithub.vaadin:vaadin-menu-bar versions 1.0.0 through 1.2.0 (Vaadin 14.0.0 through 14.4.4) allows remote attackers to execute malicious JavaScript in browser by opening crafted URL

Affected products

• Vaadin Vaadin: from 14.0.0, up to and including 14.4.4
• Vaadin Vaadin-Menu-Bar: from 1.0.0, up to and including 1.2.0

Published 2021-11-02. Last modified 2026-06-17.