Cross-site scripting in Jira Software - CVE-2018-20824
Published: May 6, 2019 / Updated: May 6, 2019
Vulnerability identifier: #VU18396
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N/E:P/U:Clear
CVE-ID: CVE-2018-20824
CWE-ID: CWE-79
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: Atlassian
Affected software:
Jira Software
Jira Software
Detailed vulnerability description
The vulnerability allows a remote attacker to perform cross-site scripting (XSS) attacks.
The vulnerability exists due to insufficient sanitization of user-supplied data when processing data passed via the cyclePeriod parameter to WallboardServlet resource. A remote attacker can trick the victim to follow a specially crafted link and execute arbitrary HTML and script code in user's browser in context of vulnerable website.
Successful exploitation of this vulnerability may allow a remote attacker to steal potentially sensitive information, change appearance of the web page, perform phishing and drive-by-download attacks.
Example:
http://[host]/plugins/servlet/Wallboard/?dashboardId=10102&dashboardId=10103&cyclePeriod=(function(){alert(document.cookie);return%2030000;})()&transitionFx=fadeZoom&random=false How to mitigate CVE-2018-20824
Install update from vendor's website.