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CVE

CVE-2020-36289

Affected versions of Atlassian Jira Server and Data Center allow an unauthenticated user to enumerate users via an Infor

Affected versions of Atlassian Jira Server and Data Center allow an unauthenticated user to enumerate users via an Information Disclosure vulnerability in the QueryComponentRendererValue!Default.jspa endpoint. The affected versions are before version 8.5.13, from version 8.6.0 before 8.13.5, and from version 8.14.0 before 8.15.1.

MEDIUM · CVSS 5.3 EPSS 0.92
Act now
  • EPSS ≥ 0.50 - high probability of exploitation in the next 30 days
  • EPSS percentile: top 0% of all CVEs by exploitation likelihood
  • Public exploit or PoC is available
  • SSVC automatable: yes - attacks can be scripted at scale
Sigma rules0 YARA rules0
⬡

Weakness Classification

CWE-863Incorrect Authorization
CWE-863Incorrect Authorization
▤

Affected Products & Versions

6
atlassian data center< 8.5.13
atlassian jira< 8.5.13
atlassian jira data center>= 8.6.0 and < 8.13.5
atlassian jira data center>= 8.14.0 and < 8.15.1
atlassian jira server>= 8.6.0 and < 8.13.5
atlassian jira server>= 8.14.0 and < 8.15.1
⚠

Public Exploits & PoCs

1
nucleiJira Server and Data Center - Information Disclosuremedium
◈

Detection Rules (IDS/IPS)

1
et-openET EXPLOIT Atlassian Jira Unauth User Enumeration Attempt (CVE-2020-36289)attempted-admin
Open rulesets (ET Open, Snort Community, abuse.ch) link to source. Commercial rulesets are reference-only.
▣

Scoring & Timeline

5.3
MEDIUM · CVSS v3.1 · security@atlassian.com
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD12 May 2021 · 04:15 AM
CVSS VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
SSVC triage · cisa-vulnrichment
Exploitation
none
Automatable
yes
Technical impact
partial
SSVC asks the questions that actually drive patch urgency: is it being exploited, can attacks be automated, and how total is the impact.
🔗

References & Sources

1
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
https://jira.atlassian.com/browse/JRASERVER-71559Issue TrackingPermissions RequiredVendor Advisory
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