What is CVE-2018-20238?

CVE-2018-20238 is a high-severity vulnerability in Atlassian Crowd, classified under Session Fixation. CVSS score: 8.1/10. Published 2019-02-13.

How severe is CVE-2018-20238?

High severity. CVSS v3 base score is 8.1 out of 10.

Vulnerability in Atlassian Crowd

CVE-2018-20238

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.

EPSS: 0.015 (71.7th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 8.1 (High). Vector: CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N.

Affected products

Atlassian Crowd — versions unspecified, 3.3.0

Weakness classification (CWE)

CWE-384 — Session Fixation

References

security@atlassian.com (x_refsource_CONFIRM, Vendor Advisory)
security@atlassian.com (VDB Entry, Third Party Advisory, vdb-entry, x_refsource_BID)

Frequently asked questions

What is CVE-2018-20238?: CVE-2018-20238 is a high-severity vulnerability in Atlassian Crowd, classified under Session Fixation. CVSS score: 8.1/10. Published 2019-02-13.
How severe is CVE-2018-20238?: High severity. CVSS v3 base score is 8.1 out of 10.