Improper sanitization of incoming intent in Samsung Contacts prior to SMR JUN-2021 Release 1 allows local attackers to copy or overwrite arbitrary files with Samsung Contacts privilege.
https://security.samsungmobile.com/securityUpdate.smsb?year=2021&month=6
https://blog.oversecured.com/Two-weeks-of-securing-Samsung-devices-Part-2/