I so hate my smelly moldy Whirlpool front loader, and wish I'd kept the old top loader. The front loaders have expensive parts and are terrible to take apart and work on.
The old units can be fixed forever using cheap parts. Unless the drum is rusted out (unlikely) you've just got a hose that's worked loose or a simple gasket issue. If there's a drain filter, take it out and clean it. Should be a straightforward repair. Like an old car you can see everything down there on those models: finding the leak should be relatively easy.
Short version: yes you can repair it.
Long version: there's a tradeoff in terms of water/energy use, compared to reliability and repairability. And search for "mold issues front loader" to see tales of woe with front loaders, especially the USA models.