Prototype Pollution

2022-11-0804:23:24

Veracode Vulnerability Database

sca.analysiscenter.veracode.com

prototype pollution

javascript object

vulnerability

contamination

software

EPSS

0.001

Percentile

36.9%

JSON

fastest-json-copy is vulnerable to pollution prototype. The vulnerability exists because of missing validation of keys in v1.js allowing an attacker to add new values to the JavaScript object prototype, overwriting or contaminating the base object.