XSS in Atlassian Data Center
CVE-2021-39117
The AssociateFieldToScreens page in Atlassian Jira Server and Data Center before version 8.18.0 allows remote attackers to inject arbitrary HTML or JavaScript via a Cross-Site Scripting (XSS) vulnerability via the name of a custom field.
Vulnerability class: XSS (Cross-Site Scripting)
EPSS: 0.006 (46.8th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 4.8 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N.
Affected products
- Atlassian Data_center
- Atlassian Jira
- Atlassian Jira Data Center — versions unspecified
- Atlassian Jira Server — versions unspecified
Weakness classification (CWE)
Public proof-of-concept exploits
References
- security@atlassian.com (x_refsource_MISC, Issue Tracking, Vendor Advisory)
Frequently asked questions
- What is CVE-2021-39117?
- CVE-2021-39117 is a medium-severity vulnerability in Atlassian Data Center, classified under Cross-site Scripting. CVSS score: 4.8/10. Published 2021-08-30.
- How severe is CVE-2021-39117?
- Medium severity. CVSS v3 base score is 4.8 out of 10.
- Is CVE-2021-39117 known to be exploited?
- 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.