What is GHSA-8vfw-v2jv-9hwc?

GHSA-8vfw-v2jv-9hwc is a security advisory published by GitHub Security Advisories with Low severity. Reflected cross-site scripting in development mode handler in Vaadin

Why does GHSA-8vfw-v2jv-9hwc have no CVE ID yet?

GitHub Security Advisories published this advisory directly to customers before NVD assigned a CVE ID. This is the embargo-window disclosure pattern — vendors notify customers on day 0; NVD's public record follows days to weeks later.

What is the CVSS v3 score of GHSA-8vfw-v2jv-9hwc?

GHSA-8vfw-v2jv-9hwc has a CVSS v3 base score of 2.5, published by GitHub Security Advisories.

Which products are affected by GHSA-8vfw-v2jv-9hwc?

GHSA-8vfw-v2jv-9hwc affects 2 products, including: maven/com.vaadin:flow-server:\u003e= 2.0.0, \u003c= 2.6.1; maven/com.vaadin:flow-server:\u003e= 3.0.0, \u003c= 6.0.9.

GHSA-8vfw-v2jv-9hwcLowCVSS 2.5Disclosed before NVD

Reflected cross-site scripting in development mode handler in Vaadin

Vendor

GitHub Security Advisories

Published

June 28, 2021

Last Modified

January 9, 2023

📋 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.

https://vaadin.com/security/cve-2021-33604

🎯 Affected products2

maven/com.vaadin:flow-server:>= 2.0.0, <= 2.6.1
maven/com.vaadin:flow-server:>= 3.0.0, <= 6.0.9

🔗 References (3)

https://github.com/vaadin/flow/security/advisories/GHSA-8vfw-v2jv-9hwc
https://vaadin.com/security/cve-2021-33604
https://github.com/advisories/GHSA-8vfw-v2jv-9hwc