CVE-2021-33604

Low

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.

SeverityLow
CVSS2.5
Exploit probability—
ProductVaadin Flow-server
PublishedJun 24, 2021
First seenJun 24, 2021
Weakness typeCWE-172CWE-172

How to fix

Update
  • com.vaadin:vaadin-bom14.6.2, 19.0.9 or later

Affected products

ProductAffected versionsFixed in
vaadin flow-server2.0.0 ≤ v ≤ 2.6.1, 3.0.0 ≤ v ≤ 5.0.0, 6.0.0 ≤ v ≤ 6.0.9—
vaadin vaadin14.0.0 ≤ v ≤ 14.6.1, 15.0.0 ≤ v ≤ 18.0.0, 19.0.0 ≤ v ≤ 19.0.8—
com.vaadin:vaadin-bomMaven14.0.0 ≤ v < 14.6.2, 15.0.0 ≤ v < 19.0.914.6.2, 19.0.9

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CVE-2021-33604 · Vaadin Flow-server · Dark Radar