deepobj provides get, set, delete deep objects in javascript. Prior to 1.0.3, prototype pollution is possible when property paths contain proto/constructor/prototype. The property path must not be exposed as user input. This vulnerability is fixed in 1.0.3.
Exploitability
AV:NAC:LPR:NUI:NScope
S:UImpact
C:NI:HA:L8.2/CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:LInput Validation