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rangy vulnerable to Prototype Pollution

High severity GitHub Reviewed Published Feb 24, 2023 to the GitHub Advisory Database • Updated Mar 3, 2023

Package

npmrangy (npm)

Affected versions

<= 1.3.1

Patched versions

None

Description

All versions of the package rangy are vulnerable to Prototype Pollution when using the extend() function in file rangy-core.js.The function uses recursive merge which can lead an attacker to modify properties of the Object.prototype.

References

Published by the National Vulnerability DatabaseFeb 24, 2023
Published to the GitHub Advisory Database Feb 24, 2023
Reviewed Feb 24, 2023
Last updated Mar 3, 2023

Severity

High

CVSS overall score

This score calculates overall vulnerability severity from 0 to 10 and is based on the Common Vulnerability Scoring System (CVSS).
/ 10

CVSS v3 base metrics

Attack vector
Network
Attack complexity
Low
Privileges required
None
User interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
Low
Availability
High

CVSS v3 base metrics

Attack vector:More severe the more the remote (logically and physically) an attacker can be in order to exploit the vulnerability.
Attack complexity:More severe for the least complex attacks.
Privileges required:More severe if no privileges are required.
User interaction:More severe when no user interaction is required.
Scope:More severe when a scope change occurs, e.g. one vulnerable component impacts resources in components beyond its security scope.
Confidentiality:More severe when loss of data confidentiality is highest, measuring the level of data access available to an unauthorized user.
Integrity:More severe when loss of data integrity is the highest, measuring the consequence of data modification possible by an unauthorized user.
Availability:More severe when the loss of impacted component availability is highest.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H

EPSS score

Exploit Prediction Scoring System (EPSS)

This score estimates the probability of this vulnerability being exploited within the next 30 days. Data provided by FIRST.
(24th percentile)

Weaknesses

Improperly Controlled Modification of Object Prototype Attributes ('Prototype Pollution')

The product receives input from an upstream component that specifies attributes that are to be initialized or updated in an object, but it does not properly control modifications of attributes of the object prototype. Learn more on MITRE.

CVE ID

CVE-2023-26102

GHSA ID

GHSA-65rp-mhqf-8gj3

Source code

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