CVE-2021-23558

Prototype Pollution

Severity Score

9.8

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

The package bmoor before 0.10.1 are vulnerable to Prototype Pollution due to missing sanitization in set function. **Note:** This vulnerability derives from an incomplete fix in [CVE-2020-7736](https://security.snyk.io/vuln/SNYK-JS-BMOOR-598664)

El paquete bmoor versiones anteriores a 0.10.1, es vulnerable a una Contaminación de Prototipos debido a una falta de saneo en la función set. **Nota:** Esta vulnerabilidad es derivada de una corrección incompleta en [CVE-2020-7736](https://security.snyk.io/vuln/SNYK-JS-BMOOR-598664)

*Credits: P.Adithya Srinivas, Masudul Hasan Masud Bhuiyan, Cristian-Alexandru Staicu

CVSS Scores

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

Low

Integrity

Low

Availability

Low

Attack Vector

Network

Attack Complexity

Low

Authentication

None

Confidentiality

Partial

Integrity

Partial

Availability

Partial

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2021-01-08 CVE Reserved
2022-01-28 CVE Published
2024-09-16 CVE Updated
2024-09-16 First Exploit
2024-10-13 EPSS Updated
---------- Exploited in Wild
---------- KEV Due Date

CWE

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

CAPEC

References (3)

URL	Tag	Source
https://snyk.io/blog/remediate-javascript-type-confusion-bypassed-input-validation	Third Party Advisory

URL	Date	SRC
https://snyk.io/vuln/SNYK-JS-BMOOR-2342622	2024-09-16

URL	Date	SRC
https://github.com/b-heilman/bmoor/commit/29b0162cc1dc1791fc060891f568b0ae29bc542b	2022-02-04

URL	Date	SRC

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Bmoor Project Search vendor "Bmoor Project"		Bmoor Search vendor "Bmoor Project" for product "Bmoor"				< 0.10.1 Search vendor "Bmoor Project" for product "Bmoor" and version " < 0.10.1"		node.js		Affected