{"id":"CVE-2021-33611","aliases":["GHSA-93c4-vf86-3rj7"],"url":"https://o3.security/vulnerability/CVE-2021-33611","summary":"Reflected cross-site scripting in vaadin-menu-bar webjar resources in Vaadin 14","details":"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","published":"2021-11-02T10:15:07.683Z","modified":"2026-07-08T22:14:03.570199Z","cvss":{"score":6.1,"severity":"MEDIUM","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N"},"epss":{"score":0.00955,"percentile":0.58195,"asOf":"2026-08-23"},"cisaKev":null,"exploitsKnown":1,"affectedPackages":[{"ecosystem":"Maven","name":"com.vaadin:vaadin-bom","fixedVersion":"14.4.5"},{"ecosystem":"Maven","name":"org.webjars.bowergithub.vaadin:vaadin-menu-bar","fixedVersion":"1.2.1"}],"fix":{"url":"https://github.com/vaadin/vaadin-menu-bar/pull/126","label":"vaadin/vaadin-menu-bar#126"},"references":[{"type":"FIX","url":"https://github.com/vaadin/vaadin-menu-bar/pull/126"},{"type":"EVIDENCE","url":"https://vaadin.com/security/cve-2021-33611"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-07-08T22:14:03.570199Z"}}