Kanboard allows a persistent HTML injection site scripting in settings page date format

Kanboard is project management software that focuses on the Kanban methodology. HTML can be injected and stored into the application settings section. The fields application_language, application_date_format,application_timezone and application_time_format allow arbirary user input which is reflected. The vulnerability can become xss if the user input is javascript code that bypass CSP. This vulnerability is fixed in 1.2.41.