CVE-2025-57330

HIGH

Web3js Web3-core-subscriptions < 1.10.4 - Prototype Pollution

Title source: rule

Description

The web3-core-subscriptions is a package designed to manages web3 subscriptions. A Prototype Pollution vulnerability in the attachToObject function of web3-core-subscriptions version 1.10.4 and before allows attackers to inject properties on Object.prototype via supplying a crafted payload, causing denial of service (DoS) as the minimum consequence.

References (2)

[Broken Link] https://github.com/VulnSageAgent/PoCs/blob/main/JavaScript/prototype-pollution/web3-core-subscriptions%401.10.4/index.js

[Third Party Advisory] https://github.com/VulnSageAgent/PoCs/tree/main/JavaScript/prototype-pollution/CVE-2025-57330

Scores

CVSS v3 7.5

EPSS 0.0013

EPSS Percentile 31.9%

Attack Vector NETWORK

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CISA SSVC

Vulnrichment

Exploitation none

Automatable yes

Technical Impact partial

Details

CWE

CWE-1321

Status published

Products (2)

npm/web3-core-subscriptions 0npm

web3js/web3-core-subscriptions < 1.10.4

Published Sep 24, 2025

Tracked Since Feb 18, 2026