CVE-2021-33611

Public Exploit
Reflected cross-site scripting in vaadin-menu-bar webjar resources in Vaadin 14

Description

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

Category

6.1
CVSS
Severity: Medium
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.30%
Third-Party Advisory github.com Third-Party Advisory vaadin.com
Affected: Vaadin Vaadin
Affected: Vaadin vaadin-menu-bar
Published at:
Updated at:

References

Link Tags
https://vaadin.com/security/cve-2021-33611 third party advisory exploit
https://github.com/vaadin/vaadin-menu-bar/pull/126 third party advisory patch

Frequently Asked Questions

What is the severity of CVE-2021-33611?
CVE-2021-33611 has been scored as a medium severity vulnerability.
How to fix CVE-2021-33611?
To fix CVE-2021-33611, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2021-33611 being actively exploited in the wild?
It is possible that CVE-2021-33611 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2021-33611?
CVE-2021-33611 affects Vaadin Vaadin, Vaadin vaadin-menu-bar.
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