CVE-2021-39112

moderate-risk
Published 2021-08-25

Affected versions of Atlassian Jira Server and Data Center allow remote attackers to redirect users to a malicious URL via a reverse tabnapping vulnerability in the Project Shortcuts feature. The affected versions are before version 8.5.15, from version 8.6.0 before 8.13.7, from version 8.14.0 before 8.17.1, and from version 8.18.0 before 8.18.1.

Do I need to act?

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0.20% 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
4
CVSS 4.8/10 Medium
NETWORK / LOW complexity

Affected Vendors

30
/ 100
moderate-risk
Severity 19/34 · Moderate
Exploitability 1/34 · Minimal
Exposure 10/34 · Low