CVE-2019-8450

Name: CVE-2019-8450
Creator: NVD / NIST
Published: 2019-09-11T14:15:12.337+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 4.8/10EPSS 0.88%

Last modified Jun 17, 2026

CVE-2019-8450 is a medium-severity vulnerability rated 4.8/10 on the CVSS scale. Various templates of the Optimization plugin in Jira before version 7.13.6, and from version 8.0.0 before version 8.4.0 allow remote attackers who have permission to manage custom fields to inject arbitrary HTML or JavaScript via a cross site scripting (XSS) vulnerability in the name of a custom field.. EPSS estimates a 0.88% chance of exploitation in the next 30 days.

Description

Various templates of the Optimization plugin in Jira before version 7.13.6, and from version 8.0.0 before version 8.4.0 allow remote attackers who have permission to manage custom fields to inject arbitrary HTML or JavaScript via a cross site scripting (XSS) vulnerability in the name of a custom field.

Metrics

CVSS 3.1

4.8/10

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

EPSS Probability

0.88%

54.5th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-79

Affected Software

Vendor	Product	Versions
Atlassian	Jira Server	>= 7.13.0, < 7.13.6
Atlassian	Jira Server	>= 8.0.0, < 8.4.0

References

https://jira.atlassian.com/browse/JRASERVER-69795Issue Tracking, Vendor Advisory
https://jira.atlassian.com/browse/JRASERVER-69795Issue Tracking, Vendor Advisory

Timeline

Published: Sep 11, 2019
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2019-8450?

How severe is CVE-2019-8450?

CVE-2019-8450 has a CVSS score of 4.8/10 (MEDIUM severity). The EPSS model estimates a 0.88% probability of exploitation in the next 30 days.

How do I fix CVE-2019-8450?

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-2019-8450?

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

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Source: NVD / NIST