How severe is CVE-2020-14178?

CVE-2020-14178 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.

Is CVE-2020-14178 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (86th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2020-14178?

CVE-2020-14178 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-2020-14178?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2020-14178 published?

CVE-2020-14178 was published on 2020-09-01 and last updated on 2026-06-17.

CVE-2020-14178

CVE-2020-14178 is a high-severity vulnerability in Atlassian Jira with a CVSS 3.x base score of 7.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Severity: High (CVSS 3.x base score 7.5)
CVSS v2: 5.0
EPSS exploit prediction: 3% (86th percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Atlassian Jira
Published: 2020-09-01
Last modified: 2026-06-17

Description

Affected versions of Atlassian Jira Server and Data Center allow remote attackers to enumerate project keys via an Information Disclosure vulnerability in the /browse.PROJECTKEY endpoint. The affected versions are before version 7.13.7, from version 8.0.0 before 8.5.8, and from version 8.6.0 before 8.12.0.

Frequently asked questions

What is CVE-2020-14178?: Affected versions of Atlassian Jira Server and Data Center allow remote attackers to enumerate project keys via an Information Disclosure vulnerability in the /browse.PROJECTKEY endpoint. The affected versions are before version 7.13.7, from version 8.0.0 before 8.5.8, and from version 8.6.0 before 8.12.0.
How severe is CVE-2020-14178?: CVE-2020-14178 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.
Is CVE-2020-14178 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (86th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2020-14178?: CVE-2020-14178 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-2020-14178?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2020-14178 published?: CVE-2020-14178 was published on 2020-09-01 and last updated on 2026-06-17.

References

https://jira.atlassian.com/browse/JRASERVER-71498

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:*:*:*:*:*:*:*:*

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 →