What is CVE-2021-33611?

CVE-2021-33611 is a medium-severity vulnerability in Vaadin, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2021-11-02.

How severe is CVE-2021-33611?

Medium severity. CVSS v3 base score is 6.1 out of 10.

XSS in Vaadin

CVE-2021-33611

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

Vulnerability class: XSS (Cross-Site Scripting)

EPSS: 0.010 (57.8th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.1 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N.

Affected products

Vaadin — versions 14.0.0, unspecified
Vaadin Vaadin-menu-bar — versions 1.0.0, unspecified

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

security@vaadin.com (x_refsource_CONFIRM, Exploit, Third Party Advisory)
security@vaadin.com (x_refsource_CONFIRM, Patch, Third Party Advisory)

Frequently asked questions

What is CVE-2021-33611?: CVE-2021-33611 is a medium-severity vulnerability in Vaadin, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2021-11-02.
How severe is CVE-2021-33611?: Medium severity. CVSS v3 base score is 6.1 out of 10.