CVE-2021-20083

WordPress Core < 5.9.1 - jQuery Prototype Pollution

Severity Score

8.8

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

Improperly Controlled Modification of Object Prototype Attributes ('Prototype Pollution') in jquery-plugin-query-object 2.2.3 allows a malicious user to inject properties into Object.prototype.

Una Modificación Controlada Inapropiadamente de Object Prototype Attributes ("Prototype Pollution") en jquery-plugin-query-object versión 2.2.3, permite a un usuario malicioso inyectar propiedades en Object.prototype

*Credits: Melar Dev

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Attack Vector

Network

Attack Complexity

Low

Authentication

Single

Confidentiality

Partial

Integrity

Partial

Availability

Partial

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2020-12-17 CVE Reserved
2021-04-23 CVE Published
2024-08-03 CVE Updated
2024-08-03 First Exploit
2024-08-26 EPSS Updated
---------- Exploited in Wild
---------- KEV Due Date

CWE

CWE-915: Improperly Controlled Modification of Dynamically-Determined Object Attributes
CWE-1321: Improperly Controlled Modification of Object Prototype Attributes ('Prototype Pollution')

CAPEC

References (4)

URL	Tag	Source
http://packetstormsecurity.com/files/166299/WordPress-Core-5.9.0-5.9.1-Cross-Site-Scripting.html	Third Party Advisory

URL	Date	SRC
https://github.com/BlackFan/client-side-prototype-pollution/blob/master/pp/jquery-query-object.md	2024-08-03

URL	Date	SRC

URL	Date	SRC
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/7CR6VGITIB2TXXZ6B5QRRWPU5S4BXQPD	2023-11-07
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/IJX6NVXSRN3RX3YUVEJQ4WUTQSDL3DSR	2023-11-07

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Jquery-plugin-query-object Project Search vendor "Jquery-plugin-query-object Project"		Jquery-plugin-query-object Search vendor "Jquery-plugin-query-object Project" for product "Jquery-plugin-query-object"				2.2.3 Search vendor "Jquery-plugin-query-object Project" for product "Jquery-plugin-query-object" and version "2.2.3"		-		Affected