Intel

AIKIDO-2025-10177

copy-anything is vulnerable to Prototype Pollution

Prototype Pollution Pre-CVE
Found by Aikido Intel before public disclosure or CVE publication.
Published Mar 25, 2025

45

Medium Risk

This Affects:

JScopy-anything
1.0.0 - 4.0.3
Fixed in 4.0.4
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TL;DR

Affected versions of this package are vulnerable to prototype pollution, allowing an attacker to inject properties such as isAdmin into an object's prototype when copying an object containing a __proto__ property using the copy function of the copy-anything library. This can lead to unauthorized access, privilege escalation, and unpredictable application behavior due to bypassed permission checks.

Who does this affect?

You are affected if you are using a version that falls within the vulnerable range.

Background info

copy-anything is vulnerable to Prototype Pollution in versions 1.0.0 - 4.0.3.

How to fix this

Upgrade the copy-anything library to the patch version.