In markMediaAsFavorite of MediaProvider.java, there is a possible way to bypass the WRITE_EXTERNAL_STORAGE permission due to a confused deputy. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is needed for exploitation.
CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H
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