CVE-2019-8446

MEDIUM EXPLOITED NUCLEI

Jira Server 7.6-8.3.1 - Unauthenticated Username Enumeration via Issue Navigation Endpoint

Title source: llm

Exploitation Summary

CVE-2019-8446 has been observed exploited in the wild (reported by VulnCheck KEV). A Nuclei detection template is also available.

Description

The /rest/issueNav/1/issueTable resource in Jira before version 8.3.2 allows remote attackers to enumerate usernames via an incorrect authorisation check.

Nuclei Templates (1)

Jira Improper Authorization

MEDIUMby dhiyaneshDk

Shodan: http.component:"Atlassian Jira" || http.component:"atlassian jira"

References (2)

Core 2

Core References

Vendor Advisory x_refsource_misc

https://jira.atlassian.com/browse/JRASERVER-69777

Exploit, Third Party Advisory x_refsource_misc

https://www.talosintelligence.com/vulnerability_reports/TALOS-2019-0839

Scores

CVSS v3 5.3

EPSS 0.1755

EPSS Percentile 96.7%

Attack Vector NETWORK

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

Details

VulnCheck KEV 2024-01-22

CWE

CWE-863

Status published

Products (1)

atlassian/jira_server 7.6 - 8.3.2

Published Aug 23, 2019

Tracked Since Feb 18, 2026