Medium severity · published Sep 14, 2021
CVE-2021-39118
Affected versions of Atlassian Jira Server and Data Center allow remote attackers to discover the usernames and full names of users via an enumeration vulnerability in the…
5.3
CVSS
1.4%
EPSS
No
On KEV
Description
Affected versions of Atlassian Jira Server and Data Center allow remote attackers to discover the usernames and full names of users via an enumeration vulnerability in the /rest/api/1.0/render endpoint. The affected versions are before version 8.19.0.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
Low
Integrity
None
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)1.4% · higher than 73% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
JI
Jira · Atlassian
before 8.19.0 · source: NVD
DC
Data Center · Atlassian
before 8.19.0 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2021-39118
CVE.org
https://www.cve.org/CVERecord?id=CVE-2021-39118
Vendor Advisory
https://jira.atlassian.com/browse/JRASERVER-72736
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