VULNERABILITY INTELLIGENCE

CVE-2021-31408

CVSS score6.3 MEDIUM

EPSS probability0.32%

CISA KEVNot currently listed

Published2021-04-23

Last modified2026-06-17

CVSS vectorCVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:N

Description

Authentication.logout() helper in com.vaadin:flow-client versions 5.0.0 prior to 6.0.0 (Vaadin 18), and 6.0.0 through 6.0.4 (Vaadin 19.0.0 through 19.0.3) uses incorrect HTTP method, which, in combination with Spring Security CSRF protection, allows local attackers to access Fusion endpoints after the user attempted to log out.

Weakness classification

security@vaadin.com: CWE-613
nvd@nist.gov: CWE-613

Primary references

security@vaadin.com — Patch, Third Party Advisory
security@vaadin.com — Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108 — Patch, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108 — Vendor Advisory