CVE-2021-39118

moderate-risk
Published 2021-09-14

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.

Do I need to act?

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0.91% chance of exploitation
EPSS score — low exploit probability
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Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
5
CVSS 5.3/10 Medium
NETWORK / LOW complexity

Affected Products (2)

Affected Vendors

Atlassian

References (2)

Vendor Advisory https://jira.atlassian.com/browse/JRASERVER-72736
Vendor Advisory https://jira.atlassian.com/browse/JRASERVER-72736
31
/ 100
moderate-risk
Severity 21/34 · High
Exploitability 3/34 · Minimal
Exposure 7/34 · Low