CVE-2020-14181 json
Affected versions of Atlassian Jira Server and Data Center allow an unauthenticated user to enumerate users via an Information Disclosure v…
published 2020-09-17 6 y ago modified 2026-06-17 4 mo ago also EUVD-2020-6338
- cvss
- 5.3
- version 3.1, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 99.7%
- EPSS 99.7% chance of exploitation in 30 days, percentile 99.9%
- public exploits
- 2
- Metasploit, Exploit-DB, plus a Nuclei check
Summary
Affected versions of Atlassian Jira Server and Data Center allow an unauthenticated user to enumerate users via an Information Disclosure vulnerability in the /ViewUserHover.jspa endpoint. The affected versions are before version 7.13.6, from version 8.0.0 before 8.5.7, and from version 8.6.0 before 8.12.0.
Patch / fix
- Atlassian Jira Server 7.13.6, 8.5.7, 8.12.0
Timeline
- First public exploit (Metasploit auxiliary/scanner/http/jira_user_enum)
- Published
Exploit prediction
99.69% chance of exploitation in the next 30 days, higher than 99.9% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- Metasploit auxiliary/scanner/http/jira_user_enum Jira Users Enumeration metasploit auxiliary, normal rank, 2020-08-16
- EDB-49633 Atlassian JIRA 8.11.1 - User Enumeration webapps, 2021-03-10
- Nuclei template Jira Server and Data Center - Information Disclosure nuclei detection template
- packetstormsecurity.com http://packetstormsecurity.com/files/161730/Atlassian-JIRA-8.11.1-User-Enumeration.html referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.1 | 5.3 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N |
| NVD | 2.0 | 5.0 | AV:N/AC:L/Au:N/C:P/I:N/A:N |
Affected products
- Atlassian Jira Server
Classification
- Weakness
-
- CWE-200 Exposure of Sensitive Information to an Unauthorized Actor
References
-
packetstormsecurity.com
/files/161730/Atlassian-JIRA-8.11.1-User-Enumeration.html
exploit, third-party-advisory, vdb-entry
-
jira.atlassian.com
/browse/JRASERVER-71560
issue-tracking, vendor-advisory
Sources
- CVE List CVE-2020-14181
- NVD CVE-2020-14181
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.