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CVE-2025-57328

CVE-2025-57328: toggle-array vulnerable to prototype pollution

toggle-array is a package designed to enables a property on the object at the specified index, while disabling the property on all other objects. A Prototype Pollution vulnerability in the enable and disable function of toggle-array v1.0.1 and before allows attackers to inject properties on Object.prototype via supplying a crafted payload, causing denial of service (DoS) as the minimum consequence.

(GitHub Advisory)

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CVE-2025-57328

CVE-2025-57328:

N/A

CVSS Score

-

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Basic Information

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Technical Details

Package Name	Ecosystem	Vulnerable Versions	First Patched Version
toggle-array	npm	<= 1.0.1

Technical Details

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Miggo AI

Root Cause Analysis

The vulnerability exists in the toggle-array package because it fails to properly sanitize user-provided input for the index parameter in its enable and disable functions. These functions call an internal function initial which directly uses the index to access and modify properties of an array or object. An attacker can supply __proto__ as the index, which allows them to access the Object.prototype. When a plain JavaScript object is passed as the arr argument, this results in the ability to add or modify properties of Object.prototype. This is a classic prototype pollution vulnerability. The vulnerable functions are toggle.enable and toggle.disable, which are the public API for this package, and the internal function initial which contains the core flawed logic. Any runtime profile during exploitation would show calls to toggle.enable or toggle.disable, which in turn call initial.

Vulnerable functions

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WAF Protection Rules

WAF Rule

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Reasoning

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