What’s Vulnerable › Vulnerabilities

CVE-2019-20412

• Severity: medium (CVSS 5.3 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.9% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2020-06-29 · updated 2026-06-17
• Weakness: CWE-287

Description

The Convert Sub-Task to Issue page in affected versions of Atlassian Jira Server and Data Center allow remote attackers to enumerate the following information via an Improper Authentication vulnerability: Workflow names; Project Key, if it is part of the workflow name; Issue Keys; Issue Types; Status Types. The affected versions are before version 7.13.9, and from version 8.0.0 before 8.4.2.

Affected products

• Atlassian Jira: before 7.13.9 — fixed in 7.13.9
• Atlassian Jira: from 8.0.0 before 8.4.2 — fixed in 8.4.2
• Atlassian Jira: from 8.0.0 before 8.4.2 — fixed in 8.4.2
• Atlassian Jira Software Data Center: before 7.13.9 — fixed in 7.13.9

How to fix

Upgrade to a fixed version: Atlassian Jira 7.13.9; Atlassian Jira 8.4.2; Atlassian Jira 8.4.2; Atlassian Jira Software Data Center 7.13.9. Check the vendor advisory for mitigations.

References

• https://jira.atlassian.com/browse/JRASERVER-70882
• https://jira.atlassian.com/browse/JRASERVER-70882

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