XSS in Atlassian Jira Data Center

CVE-2021-26080

EditworkflowScheme.jspa in Jira Server and Jira Data Center before version 8.5.14, and from version 8.6.0 before version 8.13.6, and from 8.14.0 before 8.16.1 allows remote attackers to inject arbitrary HTML or JavaScript via a cross site scripting (XSS) vulnerability.

Vulnerability class: XSS (Cross-Site Scripting)

EPSS: 0.013 (67.3th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.1 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N.

Affected products

Weakness classification (CWE)

Public proof-of-concept exploits

References

Frequently asked questions

What is CVE-2021-26080?
CVE-2021-26080 is a medium-severity vulnerability in Atlassian Jira Data Center, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2021-06-07.
How severe is CVE-2021-26080?
Medium severity. CVSS v3 base score is 6.1 out of 10.
Is CVE-2021-26080 known to be exploited?
1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.