Navidrome Parameter Tampering vulnerability

Summary

Parameter tampering is a vulnerability where an attacker has the ability to manipulate parameter values in the HTTP requests.

Details

The attacker is able to change the parameter values in the body and successfully impersonate another user. In this case, the attacker created a playlist, added song, posted arbitrary comment, set the playlist to be public, and put the admin as the owner of the playlist.

Impact

Each known user is impacted. An attacker can obtain the ownerId from shared playlist information, meaning every user who has shared a playlist is also impacted, as they can be impersonated.