Insufficient access control

When adding attachments to ticket comments,

another user can add attachments as well impersonating the orginal user. The attack requires a

logged-in other user to know the UUID. While the legitimate user

completes the comment, the malicious user can add more files to the

comment.

This issue affects OTRS: from 7.0.X through 7.0.48, from 8.0.X through 8.0.37, from 2023.X through 2023.1.1.