How severe is CVE-2019-20402?

CVE-2019-20402 has a CVSS 3.x base score of 4.9, rated medium severity. It is exploitable over network with low attack complexity, requires high privileges and no user interaction. Impact on confidentiality is none, integrity high, and availability none.

Is CVE-2019-20402 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (51st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2019-20402?

CVE-2019-20402 primarily affects Atlassian Jira. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2019-20402?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2019-20402 published?

CVE-2019-20402 was published on 2020-02-06 and last updated on 2026-06-17.

CVE-2019-20402

CVE-2019-20402 is a medium-severity vulnerability in Atlassian Jira with a CVSS 3.x base score of 4.9. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Severity: Medium (CVSS 3.x base score 4.9)
CVSS v2: 4.0
EPSS exploit prediction: 1% (51st percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Atlassian Jira
Published: 2020-02-06
Last modified: 2026-06-17

Description

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.

Frequently asked questions

What is 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.
How severe is CVE-2019-20402?: CVE-2019-20402 has a CVSS 3.x base score of 4.9, rated medium severity. It is exploitable over network with low attack complexity, requires high privileges and no user interaction. Impact on confidentiality is none, integrity high, and availability none.
Is CVE-2019-20402 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (51st percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2019-20402?: CVE-2019-20402 primarily affects Atlassian Jira. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2019-20402?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2019-20402 published?: CVE-2019-20402 was published on 2020-02-06 and last updated on 2026-06-17.

References

https://jira.atlassian.com/browse/JRASERVER-70564

Affected products (2)

cpe:2.3:a:atlassian:jira:*:*:*:*:*:*:*:*
cpe:2.3:a:atlassian:jira_software_data_center:*:*:*:*:*:*:*:*

More vulnerabilities in Atlassian Jira

CVE-2020-14172 — Critical (CVSS 9.8): This issue exists to document that a security improvement in the way that Jira Server and Data Center use velocity…
CVE-2019-20409 — Critical (CVSS 9.8): The way in which velocity templates were used in Atlassian Jira Server and Data Center prior to version 8.8.0 allowed…
CVE-2017-5983 — Critical (CVSS 9.8): The JIRA Workflow Designer Plugin in Atlassian JIRA Server before 6.3.0 improperly uses an XML parser and deserializer,…
CVE-2012-2926 — Critical (CVSS 9.1): Atlassian JIRA before 5.0.1; Confluence before 3.5.16, 4.0 before 4.0.7, and 4.1 before 4.1.10; FishEye and Crucible…
CVE-2010-1165 — Critical (CVSS 9.0): Atlassian JIRA 3.12 through 4.1 allows remote authenticated administrators to execute arbitrary code by modifying the…
CVE-2017-18113 — High (CVSS 8.8): The DefaultOSWorkflowConfigurator class in Jira Server and Jira Data Center before version 8.18.1 allows remote…

All CVEs affecting Atlassian Jira →