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Created a self-hosted API for CRUD-ing JSON data on different storage providers (local, S3, minIO, ...). (github.com)
submitted 3 weeks ago by LaVillaStrangiato@infosec.pub to c/selfhosted@lemmy.world
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Hi all. I made a self-hosted API for CRUD-ing JSON files. Built for data storage in small personal projects, or mocking an API for development. Advantages are simplicity, interoperability and performance (using the cache system).

API is based on your JSON structure. So the example below is for CRUD-ing [geralt][city] in file.json. The value (which can be anything) is then added to the body of the request. For me, it has been really flexible and useful, so I want to share it and collect feedback!

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[-] atzanteol@sh.itjust.works 1 points 3 weeks ago

You try using "../../../../../etc/passwd" as the filename in your requests? I don't see anywhere where '..' is escaped or removed from file strings. Sending untrusted filenames directly to file operations without scrubbing and sanity checking is very dangerous and potentially allows a malicious user to read and overwrite any files the application has permissions for.

this post was submitted on 31 Dec 2025
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