CVE-2019-3403

mediumpriority · attend · 49OT risk · highEPSS 0.513 · 99 %ileexploit · PoCEUUS

grimoire priorityP1 · Urgent

Exploitable?

Public exploit

2 exploits · PoC

Likely / severe?

51.3% (99th) EPSS

CVSS 5 · medium

Is it mine?

8 products

Check your exposure

Who says so?

3 sources

cnnvd · enisa_euvd · nvd

EPSS · scored 2026-10-26

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.

cvss

Technical severity, 0–10. One row per scoring source.

5.3

010

base score 0–10 · higher = more severe · hover a vector to decode

v2.05mediumAV:N/AC:L/Au:N/C:P/I:N/A:Nprimary · NVD / NIST USexploitability 10 · impact 2.9

v3.15.3mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:Nprimary · NVD / NIST USexploitability 3.9 · impact 1.4

v3.15.3mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N/E:Hsecondary · CVSS-BT (t0sche)

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-863USprimary

exploits (2)

Public proof-of-concept and weaponised exploit code.

affected products (8)

Products and version ranges known to be affected.

Atlassian Jira8.0.0 → unspecifiedenisa_euvdEU
Atlassian Jira8.1.0 → unspecifiedenisa_euvdEU
Atlassian Jiraunspecified → 7.13.3enisa_euvdEU
Atlassian Jiraunspecified → 8.0.4enisa_euvdEU
Atlassian Jiraunspecified → 8.1.1enisa_euvdEU
atlassian jira< 7.13.3nvdUScpe:2.3:a:atlassian:jira:*:*:*:*:*:*:*:*
atlassian jira server8.0.0 → 8.0.4nvdUScpe:2.3:a:atlassian:jira_server:*:*:*:*:*:*:*:*
atlassian jira server8.1.0 → 8.1.1nvdUScpe:2.3:a:atlassian:jira_server:*:*:*:*:*:*:*:*

also known as (3)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd nvd NVD CVE.org MITRE

published 2019-05-22modified 2026-06-17

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+4993 more

references (4)

External citations — patches, advisories, analysis.

scry

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