activerecord/lib/active_record/nested_attributes.rb in Active Record in Ruby on Rails 3.1.x and 3.2.x before 3.2.22.1, 4.0.x and 4.1.x before 4.1.14.1, 4.2.x before 4.2.5.1, and 5.x before 5.0.0.beta1.1 does not properly implement a certain destroy option, which allows remote attackers to bypass intended change restrictions by leveraging use of the nested attributes feature.
Exploitability
AV:NAC:LPR:NUI:NScope
S:UImpact
C:NI:LA:N5.3/CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N