Yeah, it's been done.
The best PERMANENT repairs I've seen were with automotive fiberglass kits, on fiberglass filters. If you have a tiny plastic filter, that won't work.
The fastest repair, that will work for a year or 2 on most filters is epoxy putty:Atlas Epoxy Pool Putty SetI've used that particular product for years with good success.
You'll need to put most of the putty INSIDE the filter, but push it through the hole and attach it to the outside lump of epoxy via the hole. If the hole is small, enlarge it to at least 3/8". Be SURE to rough up and clean the surface inside and out. If the filter is plastic (rather than fiberglass) you may not get a drip tight seal. Note that that epoxy can be applied underwater, and is actually smoothed and molded with wet fingers. Be sure to mix it COMPLETELY. The color should be totally uniform, before you stop mixing. Cut off a bit, and practice with it, before you try to apply it to the filter. The package I've linked to is way more than you'll use to repair a small hole. Do NOT try to apply it in a layer thinner than 3/8", except at the edges.
There are other epoxy products, but I'd strongly recommend that if you don't buy the product shown you do get a pool epoxy; auto epoxies generally do NOT have the needed qualities.
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