Storing and retrieving these files on the server-side is again a huge task and required to be handled with caution.ĭue to the involved complexity and level of caution that is required to implement a file upload functionality, this becomes one of the interesting attack vectors and can open doors to multiple critical security vulnerabilities such as Remote Code Execution. While some applications only allow uploading a profile picture and support only image-related extensions, on the other hand, some applications support other extensions based on their business case. ![]() This functionality, however, is implemented in many different forms based on the application’s use case. ![]() File upload is one of the most common functionalities application has to offer.
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