Reflected cross-site scripting in development mode handler in Vaadin 14, 15-19
CVE-2021-33604

2.5LOW

Key Information:

Vendor

Vaadin

Status
Vaadin
Flow-server
Vendor
CVE Published:
24 June 2021

What is CVE-2021-33604?

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 Version(s)

flow-server 2.0.0

flow-server <= 2.6.1

flow-server 3.0.0

References

https://vaadin.com/security/cve-2021-33604
x_refsource_CONFIRM
https://github.com/vaadin/flow/pull/11099
x_refsource_CONFIRM

CVSS V3.1

Score:
2.5
Severity:
LOW
Confidentiality:
Low
Integrity:
None
Availability:
Low
Attack Vector:
Local
Attack Complexity:
High
Privileges Required:
None
User Interaction:
Required
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.