CVE-2021-43943

MEDIUM

Atlassian Jira Service Management Server/Data Center <4.21.0 - XSS

Title source: llm

Description

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.

References (1)

Core 1

Core References

Issue Tracking, Patch, Vendor Advisory x_refsource_misc

https://jira.atlassian.com/browse/JSDSERVER-10980

Scores

CVSS v3 4.8

EPSS 0.0027

EPSS Percentile 50.1%

Attack Vector NETWORK

CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N

CISA SSVC

Vulnrichment

Exploitation none

Automatable no

Technical Impact partial

Details

CWE

CWE-79

Status published

Products (1)

atlassian/jira_service_management < 4.21.0 (2 CPE variants)

Published Feb 24, 2022

Tracked Since Feb 18, 2026