The Registration, User Profile, Membership, Content Restriction, User Directory, and Frontend Post Submission – WP User Frontend plugin for WordPress is vulnerable to unauthorized loss of data due to a missing capability check on the 'Frontend_Form_Ajax::submit_post' function in all versions up to, and including, 4.2.4. This makes it possible for unauthenticated attackers to delete attachment.
Exploitability
AV:NAC:LPR:NUI:NScope
S:UImpact
C:NI:LA:N5.3/CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:NAccess Control