Vulnerability record · CVE-2018-20238 · published 13 February 2019

CVE-2018-20238: Atlassian crowd vulnerability

Atlassian · Crowd

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.

8.1 CVSS 3.0 High EPSS 1.5% · top 26.5% CWE-384 · CWE-384

8.1CVSS 3.0 base score, v2 5.5

1.5%EPSS exploitation probability, 30 days

NoNot in CISA KEV

1Affected product versions listed by NVD

4References

17 Jun 2026Last modified by NVD

Description

CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

Crowd Atlassian

References

Link	Tags
http://www.securityfocus.com/bid/107036	Third Party AdvisoryVDB Entry
https://jira.atlassian.com/browse/CWD-5361	Vendor Advisory
http://www.securityfocus.com/bid/107036	Third Party AdvisoryVDB Entry
https://jira.atlassian.com/browse/CWD-5361	Vendor Advisory

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2018-20238), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.