Looks like it just needs a new o-ring and a good clean.

You can buy o-rings, and to clean it you could trying giving it an overnight soak in vinegar, followed by a scrub.

You say it broke relatively recently, so likely only one thing has failed. That seems to be the o-ring. As others have said, that is easily replaceable.

But ...

I think you haven't included all the parts in the photo. Or is that just it?

What is the status of the funnel where you place the ground coffee?

Also, how does the side safety valve look like? It should be on the side of the bottom compartment. The moka works with vapour pressure. A good valve is needed.

As others said, NO dishwasher. And I would also avoid much scrubbing. The moka is made out of aluminum which is a soft metal, easily damaged by acids, and with harsh scrubbing.

Echoing the others, this is totally fixable. I recommend buying a silicone gasket rather than the standard rubber ones they come with. My rubber gasket was obliterated within 9 months of daily use, but then I bought a pack of 3 silicone gaskets on Amazon maybe four years ago and the first one is still basically pristine.

Just give it a clean and replace the rubber gasket. Should be fine. The replacement gaskets usually even come togheter with a new filter, if you don't feel like cleaning the old one.

Oh and don't put it in the dishwasher! It will completely ruin the surface and make it black and rough.

What part is broken other than that nasty gasket?

The top and water reservoir look alright. I would buy a new gasket and screen. After that, it just looks like it needs a good cleaning, and possibly descaling.

Get them some cafiza. It’s for cleaning espresso machines but works great for cleaning all oily metal coffee equipment. Just get a big bowl or bucket, fill it with enough hot water to cover the parts, add a teaspoon of cafiza and let it soak for a couple hours. All the gunk should just rinse off, no need to scrub. But don’t soak the gasket.

If you have powdered oxyclean, it’s basically the same thing.

As others have said, the filter is supposed to come out. You just needs a new gasket and they’re cheap and easy to find.

The only part that really deteriorates is the rubber gasket, which needs to form a seal to keep steam from escaping. Should be able to order a replacement gasket of the same size.

The rest is just mostly thick metal and can be cleaned appropriately.

Probably about a 30 minute job to restore it, I'm thinking? Assuming you can just soak it in some CLR or something. (a common commercial de-scaling and rust-removal product)

Get a new seal. They're like $5 and will fix that moka right up.

Those are indestructible and still being made today. I have one from the 1970's that works exactly the same as one made in the 2010's.

Here is the manufacturer site where you can buy replacement seals: https://www.bialetti.com/it_en/moka-express.html

Manual: https://www.bialetti.com/media/manual/caffettiere/MOKA_EXPRESS-manual.pdf

Parts: https://www.bialetti.com/it_en/set-of-3-gaskets-and-1-filter-holder-for-4-cup-model.html

It’s clearly past it’s 2010 expiration date on the bottom…

(JK these things last forever)

Also, after you clean it up, run a few brews through because the cleaning can bring out some bad aluminum taste that a seasoned moka pot coated with oils doesn’t have.