Auth bypass in Atlassian Jira
CVE-2019-3403
The /rest/api/2/user/picker rest resource in Jira before version 7.13.3, from version 8.0.0 before version 8.0.4, and from version 8.1.0 before version 8.1.1 allows remote attackers to enumerate usernames via an incorrect authorisation check.
Vulnerability class: Broken Access Control
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N.
EPSS exploit prediction
EPSS: 0.513 (98.9th percentile), scored .
High probability of exploitation in the next 30 days — patch promptly. 99th percentile — 98.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.526 · newest: 0.513 · change: -0.014
Affected products
- Atlassian Jira — versions unspecified, 8.0.0, unspecified
- Atlassian Jira Server
Weakness classification (CWE)
Public proof-of-concept exploits
References
- jira.atlassian.com/browse/JRASERVER-69242 (Issue Tracking, Vendor Advisory)
Frequently asked questions
- What is CVE-2019-3403?
- CVE-2019-3403 is a medium-severity vulnerability in Atlassian Jira, classified under Incorrect Authorization. CVSS score: 5.3/10. Published 2019-05-22.
- How severe is CVE-2019-3403?
- Medium severity. CVSS v3 base score is 5.3 out of 10.
- Is CVE-2019-3403 known to be exploited?
- 15 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.