// For flags

CVE-2020-7766

Prototype Pollution

Severity Score

9.8
*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

2
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

-
*SSVC
Descriptions

This affects all versions of package json-ptr. The issue occurs in the set operation (https://flitbit.github.io/json-ptr/classes/_src_pointer_.jsonpointer.htmlset) when the force flag is set to true. The function recursively set the property in the target object, however it does not properly check the key being set, leading to a prototype pollution.

Esto afecta a todas las versiones del paquete json-ptr. El problema ocurre en la operación de configuración (https://flitbit.github.io/json-ptr/classes/_src_pointer_.jsonpointer.htmlset) cuando el flag de fuerza se establece en verdadero. La función establece de forma recursiva la propiedad en el objeto objetivo, sin embargo, no comprueba correctamente la clave que está siendo configurada, lo que genera una contaminación de prototipo

*Credits: Alessio Della Libera (d3lla)
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
  • 2020-01-21 CVE Reserved
  • 2020-11-10 CVE Published
  • 2024-07-28 EPSS Updated
  • 2024-09-16 CVE Updated
  • 2024-09-16 First Exploit
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
CWE
  • CWE-1321: Improperly Controlled Modification of Object Prototype Attributes ('Prototype Pollution')
CAPEC
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Json-ptr Project
Search vendor "Json-ptr Project"
 Json-ptr
Search vendor "Json-ptr Project" for product "Json-ptr"
 < 2.0.0
Search vendor "Json-ptr Project" for product "Json-ptr" and version " < 2.0.0"
-
Affected