How severe is CVE-2020-4029?

CVE-2020-4029 has a CVSS 3.x base score of 4.3, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is low, integrity none, and availability none.

Is CVE-2020-4029 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (70th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2020-4029?

CVE-2020-4029 primarily affects Atlassian Jira. In total, 4 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2020-4029?

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

When was CVE-2020-4029 published?

CVE-2020-4029 was published on 2020-07-01 and last updated on 2026-06-17.

CVE-2020-4029

CVE-2020-4029 is a medium-severity vulnerability in Atlassian Jira with a CVSS 3.x base score of 4.3. 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 4.3)
CVSS v2: 4.0
EPSS exploit prediction: 1% (70th percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Atlassian Jira
Published: 2020-07-01
Last modified: 2026-06-17

Description

The /rest/project-templates/1.0/createshared resource in Atlassian Jira Server and Data Center before version 8.5.5, from 8.6.0 before 8.7.2, and from 8.8.0 before 8.8.1 allows remote attackers to enumerate project names via an improper authorization vulnerability.

Frequently asked questions

What is CVE-2020-4029?: The /rest/project-templates/1.0/createshared resource in Atlassian Jira Server and Data Center before version 8.5.5, from 8.6.0 before 8.7.2, and from 8.8.0 before 8.8.1 allows remote attackers to enumerate project names via an improper authorization vulnerability.
How severe is CVE-2020-4029?: CVE-2020-4029 has a CVSS 3.x base score of 4.3, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is low, integrity none, and availability none.
Is CVE-2020-4029 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (70th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2020-4029?: CVE-2020-4029 primarily affects Atlassian Jira. In total, 4 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2020-4029?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2020-4029 published?: CVE-2020-4029 was published on 2020-07-01 and last updated on 2026-06-17.

References

https://jira.atlassian.com/browse/JRASERVER-70926

Affected products (4)

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

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