CVE-2021-31408
Server session is not invalidated when logout() helper method of Authentication module is used in Vaadin 18-19
6.3
MEDIUM
CVSS 3.1
EPSS 0.05%
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. - https://vaadin.com/security/cve-2021-31408
How to fix CVE-2021-31408
To remediate CVE-2021-31408, upgrade the affected package to a fixed version below.
- —upgrade to 19.0.4 or later
Is CVE-2021-31408 being exploited?
Low — EPSS is 0.0%, meaning exploitation activity has not been observed at scale.
Affected packages (1)
- >= 18.0.0, < 19.0.4
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | MEDIUM6.3 | CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:N |