CVE-2021-31408 is a high-severity vulnerability affecting Vaadin Flow versions 5.0.0 through 6.0.4. It stems from the Authentication.logout() helper using an incorrect HTTP method, which, when combined with Spring Security CSRF protection, allows local attackers to access Fusion endpoints even after a user has attempted to log out. The vulnerability has a CVSS score of 7.1, indicating a high impact on confidentiality and integrity, with a low attack complexity and requiring user interaction. There is currently no known active exploitation, publicly available exploit code, or significant community discussion surrounding this CVE.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
>= 5.0.0, < 6.0.0CPE matchmatch criteria | cpe:2.3:a:vaadin:flow:*:*:*:*:*:*:*:* | ||
>= 6.0.0, < 6.0.5CPE matchmatch criteria | cpe:2.3:a:vaadin:flow:*:*:*:*:*:*:*:* | ||
>= 19.0.0, < 19.0.4CPE matchmatch criteria | cpe:2.3:a:vaadin:vaadin:*:*:*:*:*:*:*:* | ||
18.0.0CPE matchmatch criteria | cpe:2.3:a:vaadin:vaadin:18.0.0:-:*:*:*:*:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:N
The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.2 GitHub mentions.
No media coverage found for this CVE.
The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.