CVE-2020-4024

Name: CVE-2020-4024
Creator: NVD / NIST
Published: 2020-07-01T02:15:12.193+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 5.4/10EPSS 0.93%

Last modified Jun 17, 2026

CVE-2020-4024 is a medium-severity vulnerability rated 5.4/10 on the CVSS scale. The attachment download resource in Atlassian Jira Server and Data Center before 8.5.5, and from 8.6.0 before 8.8.2, and from 8.9.0 before 8.9.1 allows remote attackers to inject arbitrary HTML or JavaScript via a Cross-Site Scripting (XSS) vulnerability issue attachments with a vnd.wap.xhtml+xml content type.. EPSS estimates a 0.93% chance of exploitation in the next 30 days.

Description

The attachment download resource in Atlassian Jira Server and Data Center before 8.5.5, and from 8.6.0 before 8.8.2, and from 8.9.0 before 8.9.1 allows remote attackers to inject arbitrary HTML or JavaScript via a Cross-Site Scripting (XSS) vulnerability issue attachments with a vnd.wap.xhtml+xml content type.

Metrics

CVSS 3.1

5.4/10

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

EPSS Probability

0.93%

55.9th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-79

Affected Software

Vendor	Product	Versions
Atlassian	Jira	< 8.5.5
Atlassian	Jira Data Center	>= 8.6.0, < 8.8.2
Atlassian	Jira Data Center	>= 8.9.0, < 8.9.1
Atlassian	Jira Server	>= 8.6.0, < 8.8.2
Atlassian	Jira Server	>= 8.9.0, < 8.9.1
Atlassian	Jira Software Data Center	< 8.5.5

References

https://jira.atlassian.com/browse/JRASERVER-71113Vendor Advisory
https://jira.atlassian.com/browse/JRASERVER-71113Vendor Advisory

Timeline

Published: Jul 1, 2020
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2020-4024?

How severe is CVE-2020-4024?

CVE-2020-4024 has a CVSS score of 5.4/10 (MEDIUM severity). The EPSS model estimates a 0.93% probability of exploitation in the next 30 days.

How do I fix CVE-2020-4024?

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-2020-4024?

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

Scan your code now

Source: NVD / NIST