CVE-2018-20238

Severity: high (CVSS 8.1 v3.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 1.5% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2019-02-13 · updated 2026-06-17
Weakness: CWE-384

Description

Various rest resources in Atlassian Crowd before version 3.2.7 and from version 3.3.0 before version 3.3.4 allow remote attackers to authenticate using an expired user session via an insufficient session expiration vulnerability.

Affected products

Atlassian Crowd: before 3.2.7; from 3.3.0 before 3.3.4 — fixed in 3.2.7, 3.3.4

How to fix

Upgrade to a fixed version: Atlassian Crowd 3.2.7, 3.3.4. Check the vendor advisory for mitigations.

References

http://www.securityfocus.com/bid/107036
https://jira.atlassian.com/browse/CWD-5361
http://www.securityfocus.com/bid/107036
https://jira.atlassian.com/browse/CWD-5361

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