CVE-2020-15944
Due to missing validation of user input, it is vulnerable to a persistent XSS attack.
Does this matter?
Lower severity and a low EPSS score (1.35%). Track it; it rarely justifies an emergency change on its own.
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.
- CVSS 3.1
- 5.4 MEDIUMCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
- EPSS
- 1.35% probability · 71th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-79
- Affected
- gantt-chart project/gantt-chart
- Source
- cve@mitre.org
EPSS 1.3% since 26 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
References
- http://packetstormsecurity.com/files/158752/Gantt-Chart-For-Jira-5.5.4-Cross-Site-Scripting.htmlExploit, Third Party Advisory, VDB Entry
- http://seclists.org/fulldisclosure/2020/Aug/1Exploit, Mailing List, Third Party Advisory
- https://marketplace.atlassian.com/apps/28997/gantt-chart-for-jira?hosting=cloud&tab=overviewProduct, Third Party Advisory
- https://www.syss.de/fileadmin/dokumente/Publikationen/Advisories/SYSS-2020-030.txtExploit, Third Party Advisory
- http://packetstormsecurity.com/files/158752/Gantt-Chart-For-Jira-5.5.4-Cross-Site-Scripting.htmlExploit, Third Party Advisory, VDB Entry
- http://seclists.org/fulldisclosure/2020/Aug/1Exploit, Mailing List, Third Party Advisory
- https://marketplace.atlassian.com/apps/28997/gantt-chart-for-jira?hosting=cloud&tab=overviewProduct, Third Party Advisory
- https://www.syss.de/fileadmin/dokumente/Publikationen/Advisories/SYSS-2020-030.txtExploit, Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.