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home-assistant-js-websocket@5.8.1 vulnerabilities

Home Assistant websocket client

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Direct Vulnerabilities

Known vulnerabilities in the home-assistant-js-websocket package. This does not include vulnerabilities belonging to this package’s dependencies.

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Vulnerability Vulnerable Version
  • M
Cross-site Scripting (XSS)

home-assistant-js-websocket is a Home Assistant websocket client

Affected versions of this package are vulnerable to Cross-site Scripting (XSS) via the state parameter in the WebSocket authentication logic. An attacker can spoof WebSocket responses and execute this vulnerability by crafting a malicious link with a modified state parameter that redirects the frontend to an alternative WebSocket backend. This is only exploitable if the attacker can persuade the victim to click on a malicious link. Additionally, the ability to iframe the site from other origins can make the attack more covert, as a malicious website could hide the attack in the background

How to fix Cross-site Scripting (XSS)?

Upgrade home-assistant-js-websocket to version 8.2.0 or higher.

<8.2.0
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