The "/attachlist" page:

List attachments.

   tkt=TICKETUUID
   page=WIKIPAGE

At most one of technote=, tkt= or page= are supplied.
If none is given, all attachments are listed.  If one is given,
only attachments for the designated technote, ticket or wiki page
are shown. TECHNOTEUUID and TICKETUUID may be just a prefix of the
relevant technical note or ticket, in which case all attachments
of all technical notes or tickets with the prefix will be listed.