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 che…

Vulnerability class: Broken Access Control

EPSS: 0.828 (99.3th percentile) — read the EPSS interpretation.

Affected products

Weakness classification (CWE)

Public proof-of-concept exploits

References

Frequently asked questions

What is CVE-2019-3403?
CVE-2019-3403 is a vulnerability in Atlassian Jira, classified under Incorrect Authorization. Published 2019-05-22.
Is CVE-2019-3403 known to be exploited?
15 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.