Firefly III 4.7.17.3 is vulnerable to local file enumeration. An attacker can enumerate local files due to the lack of protocol scheme sanitization, such as for file:/// URLs. This is related to fints_url to import/job/configuration, and import/create/fints.
https://github.com/firefly-iii/firefly-iii/issues/2367
https://github.com/firefly-iii/firefly-iii/commit/e80d616ef4397e6e764f6b7b7a5b30121244933c