assign-deep node module before 0.4.7 suffers from a Modification of Assumed-Immutable Data (MAID) vulnerability, which allows a malicious user to modify the prototype of "Object" via __proto__, causing the addition or modification of an existing property that will exist on all objects.
The product does not properly protect an assumed-immutable element from being modified by an attacker.
Link | Tags |
---|---|
https://hackerone.com/reports/310707 | third party advisory exploit |
https://github.com/jonschlinkert/assign-deep/commit/19953a8c089b0328c470acaaaf6accdfcb34da11 | third party advisory patch |