XSS vulnerability in OAuth callback server allows JavaScript injection through unsanitized error parameter. Attackers can execute arbitrary JavaScript in the user's browser during OAuth authentication.
The CacheHandler class creates a cache file to store the auth token here: https://github.com/spotipy-dev/spotipy/blob/master/spotipy/cache_handler.py#L93-L98 The file created has rw-r–r– (644) permissions by default, when it could be locked down to rw——- (600) permissions. I think 600 is a sensible default.
Spotipy is a light weight Python library for the Spotify Web API. In versions prior to 2.22.1, if a malicious URI is passed to the library, the library can be tricked into performing an operation on a different API endpoint than intended. The code Spotipy uses to parse URIs and URLs allows an attacker to insert arbitrary characters into the path that is used for API requests. Because it is …
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') in spotipy.