UpHeron
All vulnerabilities

Servers and applications

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.

Severity
Medium 5.3
Published
22 May 2019
Last changed
17 Jun 2026
Added to UpHeron
1 Nov 2026
Fixed in
7.13.3, 8.0.4, 8.1.1
Exploit chance
54% in the next 30 daysHigher than 99% of CVEs. EPSS by FIRST, 10 Nov 2026
Weakness
Incorrect authorization (CWE-863)
Attack
Over the network · No login needed · No user action needed
Attacker can
Read some data
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Sources
NVD

Affected software

SoftwareAffected versions
JiraServers and applications · cpe:a:atlassian:jira
  • Every version before 7.13.3
JiraServers and applications · cpe:a:atlassian:jira_server
  • From 8.0.0 before 8.0.4
  • From 8.1.0 before 8.1.1

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2019-3403
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2019-3403