The Mail.ru Calendar plugin before 2.5.0.61 for Atlassian Jira has XSS via the Name field in a Create Calender action, related to a MailRuCalendar.jspa#period/month URI.
- https://packetstormsecurity.com/files/137649/JIRA-Mail.ru-Calendar-2.4.2.50_JIRA6-Cross-Site-Scripting.html
No PoCs found on GitHub currently.