WS-2020-0443 (High) detected in socket.io-2.1.1.tgz

## WS-2020-0443 - High Severity Vulnerability
Vulnerable Library - socket.io-2.1.1.tgz

node.js realtime framework server

Library home page: https://registry.npmjs.org/socket.io/-/socket.io-2.1.1.tgz

Path to dependency file: /package.json

Path to vulnerable library: /node_modules/socket.io/package.json

Dependency Hierarchy:
- karma-4.4.1.tgz (Root Library)
- :x: **socket.io-2.1.1.tgz** (Vulnerable Library)

Vulnerability Details

In socket.io in versions 1.0.0 to 2.3.0 is vulnerable to Cross-Site Websocket Hijacking, it allows an attacker to bypass origin protection using special symbols include "`" and "$".

Publish Date: 2020-02-20

URL: WS-2020-0443

CVSS 3 Score Details (8.1)

Base Score Metrics:
- Exploitability Metrics:
- Attack Vector: Network
- Attack Complexity: Low
- Privileges Required: None
- User Interaction: Required
- Scope: Unchanged
- Impact Metrics:
- Confidentiality Impact: High
- Integrity Impact: High
- Availability Impact: None

For more information on CVSS3 Scores, click here.

Suggested Fix

Type: Upgrade version

Origin: https://hackerone.com/reports/931197

Release Date: 2020-02-20

Fix Resolution (socket.io): 2.4.0

Direct dependency fix Resolution (karma): 5.0.8

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