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CVE-2021-31408

MEDIUM
Published 2021-04-23T16:07:16.629224Z
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CVSS Score

V3.1
6.3
/10
CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:N
Base Score Metrics
Exploitability: N/A Impact: N/A

EPSS Score

v2025.03.14
0.001
probability
of exploitation in the wild

There is a 0.1% chance that this vulnerability will be exploited in the wild within the next 30 days.

Updated: 2025-06-25
Exploit Probability
Percentile: 0.307
Higher than 30.7% of all CVEs

Attack Vector Metrics

Attack Vector
LOCAL
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED

Impact Metrics

Confidentiality
HIGH
Integrity
HIGH
Availability
NONE

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.

Available Exploits

No exploits available for this CVE.

Related News

No news articles found for this CVE.

Affected Products

Vaadin

Vaadin

Affected Versions:

18.0.0
Vaadin

flow-client

Affected Versions:

5.0.0

GitHub Security Advisories

Community-driven vulnerability intelligence from GitHub

✓ GitHub Reviewed MODERATE

Server session is not invalidated when logout() helper method of Authentication module is used in Vaadin 18-19

GHSA-mr8h-j9cv-4m8h

Advisory Details

`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

Affected Packages

Maven com.vaadin:vaadin-bom
ECOSYSTEM: ≥18.0.0 <19.0.4

CVSS Scoring

CVSS Score

5.0

CVSS Vector

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

References

WEB https://github.com/vaadin/platform/security/advisories/GHSA-mr8h-j9cv-4m8h
ADVISORY https://nvd.nist.gov/vuln/detail/CVE-2021-31408
WEB https://github.com/vaadin/flow/pull/10577
WEB https://vaadin.com/security/cve-2021-31408

Advisory provided by GitHub Security Advisory Database. Published: April 22, 2021, Modified: April 22, 2021

References

https://vaadin.com/security/cve-2021-31408
https://github.com/vaadin/flow/pull/10577
Published: 2021-04-23T16:07:16.629224Z
Last Modified: 2024-09-17T02:06:19.701Z
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