CVE-2020-15944

Severity: medium (CVSS 5.4 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 1.3% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2020-08-04 · updated 2026-06-17
Weakness: CWE-79

Description

An issue was discovered in the Gantt-Chart module before 5.5.5 for Jira. Due to missing validation of user input, it is vulnerable to a persistent XSS attack. An attacker can embed the attack vectors in the dashboard of other users. To exploit this vulnerability, an attacker has to be authenticated.

Affected products

Gantt-Chart Project Gantt-Chart: before 5.5.5 — fixed in 5.5.5

How to fix

Upgrade to a fixed version: Gantt-Chart Project Gantt-Chart 5.5.5. Check the vendor advisory for mitigations.

References

http://packetstormsecurity.com/files/158752/Gantt-Chart-For-Jira-5.5.4-Cross-Site-Scripting.html
http://seclists.org/fulldisclosure/2020/Aug/1
https://marketplace.atlassian.com/apps/28997/gantt-chart-for-jira?hosting=cloud&tab=overview
https://www.syss.de/fileadmin/dokumente/Publikationen/Advisories/SYSS-2020-030.txt
http://packetstormsecurity.com/files/158752/Gantt-Chart-For-Jira-5.5.4-Cross-Site-Scripting.html
http://seclists.org/fulldisclosure/2020/Aug/1
https://marketplace.atlassian.com/apps/28997/gantt-chart-for-jira?hosting=cloud&tab=overview
https://www.syss.de/fileadmin/dokumente/Publikationen/Advisories/SYSS-2020-030.txt

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