CWE-1321 Improperly Controlled Modification of Object Prototype Attributes ('Prototype Pollution') – Detailed Weakness Analysis

Explore CAPEC attack patterns referencing this CWE.

What is CWE (Common Weakness Enumeration)?

The Common Weakness Enumeration (CWE) is a community-developed list of common software and hardware weaknesses. By identifying these weaknesses, developers and security practitioners can prioritize and address potential vulnerabilities early in the development cycle. Explore our comprehensive CWE list below to better understand and mitigate common security issues.

CAPEC Patterns referencing CWE-1321

Below is a list of CAPEC attack patterns associated with this CWE-1321. Click on each CAPEC to learn more. The right column shows the related weaknesses (including this one).

CAPEC

Related Weaknesses

Accessing Functionality Not Properly Constrained by ACLs

CWE-276	Incorrect Default Permissions
CWE-285	Improper Authorization
CWE-434	Unrestricted Upload of File with Dangerous Type
CWE-693	Protection Mechanism Failure
CWE-732	Incorrect Permission Assignment for Critical Resource
CWE-1191	On-Chip Debug and Test Interface With Improper Access Control
CWE-1193	Power-On of Untrusted Execution Core Before Enabling Fabric Access Control
CWE-1220	Insufficient Granularity of Access Control
CWE-1297	Unprotected Confidential Information on Device is Accessible by OSAT Vendors
CWE-1311	Improper Translation of Security Attributes by Fabric Bridge
CWE-1314	Missing Write Protection for Parametric Data Values
CWE-1315	Improper Setting of Bus Controlling Capability in Fabric End-point
CWE-1318	Missing Support for Security Features in On-chip Fabrics or Buses
CWE-1320	Improper Protection for Outbound Error Messages and Alert Signals
CWE-1321	Improperly Controlled Modification of Object Prototype Attributes ('Prototype Pollution')
CWE-1327	Binding to an Unrestricted IP Address

Exploiting Incorrectly Configured Access Control Security Levels

CWE-732	Incorrect Permission Assignment for Critical Resource
CWE-1190	DMA Device Enabled Too Early in Boot Phase
CWE-1191	On-Chip Debug and Test Interface With Improper Access Control
CWE-1193	Power-On of Untrusted Execution Core Before Enabling Fabric Access Control
CWE-1220	Insufficient Granularity of Access Control
CWE-1268	Policy Privileges are not Assigned Consistently Between Control and Data Agents
CWE-1280	Access Control Check Implemented After Asset is Accessed
CWE-1297	Unprotected Confidential Information on Device is Accessible by OSAT Vendors
CWE-1311	Improper Translation of Security Attributes by Fabric Bridge
CWE-1315	Improper Setting of Bus Controlling Capability in Fabric End-point
CWE-1318	Missing Support for Security Features in On-chip Fabrics or Buses
CWE-1320	Improper Protection for Outbound Error Messages and Alert Signals
CWE-1321	Improperly Controlled Modification of Object Prototype Attributes ('Prototype Pollution')

Manipulating User-Controlled Variables

CWE-15	External Control of System or Configuration Setting
CWE-94	Improper Control of Generation of Code ('Code Injection')
CWE-96	Improper Neutralization of Directives in Statically Saved Code ('Static Code Injection')
CWE-285	Improper Authorization
CWE-302	Authentication Bypass by Assumed-Immutable Data
CWE-473	PHP External Variable Modification
CWE-1321	Improperly Controlled Modification of Object Prototype Attributes ('Prototype Pollution')

About CWE-1321: Improperly Controlled Modification of Object Prototype Attributes ('Prototype Pollution')

CWE-1321 is one of the established Common Weakness Enumerations that identifies a specific type of vulnerability in software. Detailed analysis of CWE-1321 helps organizations understand the risks associated with this weakness and implement effective countermeasures.

Explore related attack patterns, best practices, and expert recommendations on this page. By understanding CWE-1321, you can enhance your security posture and better protect your applications against exploitation.