Dradis through 4.16.0 allows referencing external images (resources) over HTTPS, instead of forcing the use of embedded (uploaded) images. This can be leveraged by an authorized author to attempt to steal the Net-NTLM hashes of other authors on a Windows domain network.
A capture-replay flaw exists when the design of the product makes it possible for a malicious user to sniff network traffic and bypass authentication by replaying it to the server in question to the same effect as the original message (or with minor changes).