What is CVE-2019-20402?

CVE-2019-20402 is a medium-severity vulnerability in Atlassian Jira. CVSS score: 4.9/10. Published 2020-02-06.

How severe is CVE-2019-20402?

Medium severity. CVSS v3 base score is 4.9 out of 10.

Vulnerability in Atlassian Jira

CVE-2019-20402

Support zip files in Atlassian Jira Server and Data Center before version 8.6.0 could be downloaded by a System Administrator user without requiring the user to re-enter their password via an improper authorization vulnerability.

Published 2020-02-06 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 4.9 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:N.

EPSS exploit prediction

EPSS: 0.008 (53.8th percentile), scored 2026-10-02.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 54th percentile — 53.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.008 · newest: 0.008 · change: 0.000

Affected products

Atlassian Jira
Atlassian Jira Server — versions unspecified
Atlassian Jira Software Data Center

References

jira.atlassian.com/browse/JRASERVER-70564 (Issue Tracking, Vendor Advisory)

Frequently asked questions

What is CVE-2019-20402?: CVE-2019-20402 is a medium-severity vulnerability in Atlassian Jira. CVSS score: 4.9/10. Published 2020-02-06.
How severe is CVE-2019-20402?: Medium severity. CVSS v3 base score is 4.9 out of 10.