CVE-2019-20409

Name: CVE-2019-20409
Creator: NVD / NIST
Published: 2020-06-23T06:15:11.527+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

CRITICALCVSS 9.8/10EPSS 2.48%

Last modified Jun 17, 2026

CVE-2019-20409 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. The way in which velocity templates were used in Atlassian Jira Server and Data Center prior to version 8.8.0 allowed remote attackers to gain remote code execution if they were able to exploit a server side template injection vulnerability.. EPSS estimates a 2.48% chance of exploitation in the next 30 days.

Description

The way in which velocity templates were used in Atlassian Jira Server and Data Center prior to version 8.8.0 allowed remote attackers to gain remote code execution if they were able to exploit a server side template injection vulnerability.

Metrics

CVSS 3.1

9.8/10

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

EPSS Probability

2.48%

82.6th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-74

Affected Software

Vendor	Product	Versions
Atlassian	Jira	< 8.8.0
Atlassian	Jira Software Data Center	< 8.8.0

References

https://jira.atlassian.com/browse/JRASERVER-70944Issue Tracking, Vendor Advisory
https://jira.atlassian.com/browse/JRASERVER-70944Issue Tracking, Vendor Advisory

Timeline

Published: Jun 23, 2020
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2019-20409?

How severe is CVE-2019-20409?

CVE-2019-20409 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 2.48% probability of exploitation in the next 30 days.

How do I fix CVE-2019-20409?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2019-20409?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST