Provide references for CVE-2021-3957.
Where can I find more information about CVE-2021-3957?
References are available at: https://huntr.dev/bounties/5fa3098a-ba02-45e0-af56-645e34dbc691, https://github.com/kevinpapst/kimai2/commit/6b49535b523dcd36ec59462ee4e67e2b3a9151f3.