What is CVE-2019-20902?

CVE-2019-20902 is a high-severity vulnerability in Atlassian Crowd. CVSS score: 7.5/10. Published 2020-10-01.

How severe is CVE-2019-20902?

High severity. CVSS v3 base score is 7.5 out of 10.

Vulnerability in Atlassian Crowd

CVE-2019-20902

Upgrading Crowd via XML Data Transfer can reactivate a disabled user from OpenLDAP. The affected versions are from before version 3.4.6 and from 3.5.0 before 3.5.1.

Published 2020-10-01 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N.

EPSS exploit prediction

EPSS: 0.009 (58.1th percentile), scored 2026-10-19.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 58th percentile — 58.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.009 · newest: 0.009 · change: 0.000

Affected products

Atlassian Crowd — versions unspecified, 3.5.0, unspecified

References

jira.atlassian.com/browse/CWD-5409 (Vendor Advisory)

Frequently asked questions

What is CVE-2019-20902?: CVE-2019-20902 is a high-severity vulnerability in Atlassian Crowd. CVSS score: 7.5/10. Published 2020-10-01.
How severe is CVE-2019-20902?: High severity. CVSS v3 base score is 7.5 out of 10.