CVE-2021-33604

Published: Jun 24, 2021Modified: Jun 17, 2026

2.5

Vector

CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:L/I:N/A:N

Exploitability: 1.0 / Impact: 1.4

Source: NVD

Description

URL encoding error in development mode handler in com.vaadin:flow-server versions 2.0.0 through 2.6.1 (Vaadin 14.0.0 through 14.6.1), 3.0.0 through 6.0.9 (Vaadin 15.0.0 through 19.0.8) allows local user to execute arbitrary JavaScript code by opening crafted URL in browser.

Affected (6)

Products: Vaadin: Flow Server, Vaadin

Vaadin

2 products

Flow Server

Vaadin

Configuration A

6 vulnerable

Vulnerable Software	Affected Versions
Vaadin Flow Server	From 2.0.0 to 2.6.1
Vaadin Flow Server	From 3.0.0 to 5.0.0
Vaadin Flow Server	From 6.0.0 to 6.0.9
Vaadin Vaadin	From 14.0.0 to 14.6.1
Vaadin Vaadin	From 15.0.0 to 18.0.0
Vaadin Vaadin	From 19.0.0 to 19.0.8