Improperly Controlled Modification of Dynamically-Determined Object Attributes

Property	Value
Language
Severity
CWE	CWE-915: Improperly Controlled Modification of Dynamically-Determined Object Attributes
OWASP	A08:2021 - Software and Data Integrity Failures
Confidence Level	Low
Impact Level	Low
Likelihood Level	Low

Description

The code allows properties to be dynamically assigned to objects without checking if the property name is 'proto', 'constructor', or similar prototype keys. This can let attackers modify the prototype of built-in objects, leading to unexpected behavior across your application.

Impact

If exploited, attackers could inject or overwrite properties on all objects, potentially bypassing security checks, altering application logic, or causing data corruption. This may lead to security breaches, data leaks, or application crashes that are difficult to trace.