Home/CVE/The /rest/api/latest/groupuserpicker resource in Jira before version 8.4.0 allows remote attackers to enumerate username
CVE

CVE-2019-8449

The /rest/api/latest/groupuserpicker resource in Jira before version 8.4.0 allows remote attackers to enumerate username

The /rest/api/latest/groupuserpicker resource in Jira before version 8.4.0 allows remote attackers to enumerate usernames via an information disclosure vulnerability.

MEDIUM · CVSS 5.3 EPSS 0.7108
Act now
  • EPSS ≥ 0.50 - high probability of exploitation in the next 30 days
  • EPSS percentile: top 1% of all CVEs by exploitation likelihood
  • Public exploit or PoC is available
Sigma rules0 YARA rules0
⬡

Weakness Classification

CWE-306Missing Authentication for Critical Function
▤

Affected Products & Versions

1
atlassian jira< 8.4.0
⚠

Public Exploits & PoCs

3
webappsJira 8.3.4 - Information Disclosure (Username Enumeration)2020-02-03
nucleiJira <8.4.0 - Information Disclosuremedium
pocpacketstormsecurity.com · Jira-8.3.4-Information-Disclosure.htmlpacketstormsecurity.com
▣

Scoring & Timeline

5.3
MEDIUM · CVSS v3.1 · security@atlassian.com
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD11 Sep 2019 · 02:15 PM
CVSS VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
🔗

References & Sources

1
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
https://jira.atlassian.com/browse/JRASERVER-69796Issue TrackingVendor Advisory
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