The attachment capability in Compose Mail in BasiliX Webmail 1.1.0 does not check whether the attachment was uploaded by the user or came from a HTTP POST, which could allow local users to steal sensitive information like a password file.
Exploitability
AV:LAC:LAu:NImpact
C:PI:PA:N3.6/AV:L/AC:L/Au:N/C:P/I:P/A:N