Redmine before 4.0.9, 4.1.x before 4.1.3, and 4.2.x before 4.2.1 allows users to circumvent the allowed filename extensions of uploaded attachments.
{
"severity": "Medium",
"cpes": [
"cpe:2.3:a:redmine:redmine:*:*:*:*:*:*:*:*"
]
}