CVE-2018-20824

Name: CVE-2018-20824
Creator: NVD / NIST
Published: 2019-05-03T20:29:00.31+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 37.58%

Last modified Jun 17, 2026

CVE-2018-20824 is a vulnerability of currently unknown severity. The WallboardServlet resource in Jira before version 7.13.1 allows remote attackers to inject arbitrary HTML or JavaScript via a cross site scripting (XSS) vulnerability in the cyclePeriod parameter.. EPSS estimates a 37.58% chance of exploitation in the next 30 days.

Description

The WallboardServlet resource in Jira before version 7.13.1 allows remote attackers to inject arbitrary HTML or JavaScript via a cross site scripting (XSS) vulnerability in the cyclePeriod parameter.

Metrics

EPSS Probability

37.58%

98.3th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-79

Affected Software

Vendor	Product	Versions
Atlassian	Jira	< 7.13.1

References

https://jira.atlassian.com/browse/JRASERVER-69238Issue Tracking, Vendor Advisory
https://jira.atlassian.com/browse/JRASERVER-69238Issue Tracking, Vendor Advisory

Timeline

Published: May 3, 2019
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2018-20824?

The WallboardServlet resource in Jira before version 7.13.1 allows remote attackers to inject arbitrary HTML or JavaScript via a cross site scripting (XSS) vulnerability in the cyclePeriod parameter.

How severe is CVE-2018-20824?

Severity scoring for CVE-2018-20824 is pending analysis. The EPSS model estimates a 37.58% probability of exploitation in the next 30 days.

How do I fix CVE-2018-20824?

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-2018-20824?

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

Scan your code now

Source: NVD / NIST