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Fencer Vulns
medium 5.3

CVE-2020-36289 json

Affected versions of Atlassian Jira Server and Data Center allow an unauthenticated user to enumerate users via an Information Disclosure v…

published 2021-05-12 5 y ago modified 2026-06-17 4 mo ago also EUVD-2020-23831

cvss
5.3
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
99.4%
EPSS 99.4% chance of exploitation in 30 days, percentile 99.9%
public exploits
0
none known, 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 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.

Patch / fix

  • Atlassian Jira Server 8.5.13, 8.13.5, 8.15.1
  • Atlassian Jira Data Center 8.5.13, 8.13.5, 8.15.1
  • atlassian jira_data_center 8.5.15, 8.13.7, 8.17.0
  • atlassian jira_server 8.5.15, 8.13.7, 8.17.0

CISA SSVC

Exploitation
none
Automatable
yes
Technical impact
partial
Assessed
2 y ago

Exploit prediction

99.36% chance of exploitation in the next 30 days, higher than 99.9% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • Nuclei template Jira Server and Data Center - Information Disclosure nuclei detection template

CVSS scores

assigned by version score vector
CISA ADP 3.1 5.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
NVD 3.1 5.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
CNA 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
  • Atlassian Jira Data Center
  • atlassian jira_data_center
  • atlassian jira_server

Classification

Weakness

References

Sources

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.