XSS in Atlassian Jira Service Management
CVE-2021-43943
Affected versions of Atlassian Jira Service Management Server and Data Center allow attackers with administrator privileges to inject arbitrary HTML or JavaScript via a Cross-Site Scripting (XSS) vulnerability in the "Object Schema" field of /secure/admin/InsightDefaultCustomFieldConfig.jspa. The affected versions are before version 4.21.0.
Vulnerability class: XSS (Cross-Site Scripting)
Published · last modified .
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.
EPSS exploit prediction
EPSS: 0.004 (37.0th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 37th percentile — 37.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.004 · newest: 0.004 · change: 0.000
Affected products
- Atlassian Jira Service Management
- Atlassian Jira Service Management Data Center — versions unspecified
- Atlassian Jira Service Management Server — versions unspecified
Weakness classification (CWE)
References
- jira.atlassian.com/browse/JSDSERVER-10980 (Patch, Issue Tracking, Vendor Advisory)
Frequently asked questions
- What is CVE-2021-43943?
- CVE-2021-43943 is a medium-severity vulnerability in Atlassian Jira Service Management, classified under Cross-site Scripting. CVSS score: 4.8/10. Published 2022-02-24.
- How severe is CVE-2021-43943?
- Medium severity. CVSS v3 base score is 4.8 out of 10.