Skip to content

Prototype Pollution in undefsafe

Moderate severity GitHub Reviewed Published Feb 9, 2022 to the GitHub Advisory Database • Updated Feb 1, 2023

Package

npm undefsafe (npm)

Affected versions

< 2.0.3

Patched versions

2.0.3

Description

undefsafe before 2.0.3 is vulnerable to Prototype Pollution. The 'a' function could be tricked into adding or modifying properties of Object.prototype using a __proto__ payload.

References

Published by the National Vulnerability Database Feb 18, 2020
Reviewed Apr 7, 2021
Published to the GitHub Advisory Database Feb 9, 2022
Last updated Feb 1, 2023

Severity

Moderate

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
Low
User interaction
None
Scope
Unchanged
Confidentiality
Low
Integrity
Low
Availability
Low

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:L/UI:N/S:U/C:L/I:L/A:L

EPSS score

0.074%
(33rd percentile)

Weaknesses

CVE ID

CVE-2019-10795

GHSA ID

GHSA-332q-7ff2-57h2

Source code

Credits

Loading Checking history
See something to contribute? Suggest improvements for this vulnerability.