CVE-2023-41895

2023-10-1923:15:08

CWE-79

[email protected]

web.nvd.nist.gov

cve-2023-41895

home assistant

open source

home automation

xss vulnerability

upgrade

security

nvd

9.6 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

CHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

8.2 High

AI Score

Confidence

High

0.001 Low

EPSS

Percentile

48.9%

JSON

Home assistant is an open source home automation. The Home Assistant login page allows users to use their local Home Assistant credentials and log in to another website that specifies the redirect_uri and client_id parameters. Although the redirect_uri validation typically ensures that it matches the client_id and the scheme represents either http or https, Home Assistant will fetch the client_id and check for <link rel="redirect_uri" href="..."> HTML tags on the page. These URLs are not subjected to the same scheme validation and thus allow for arbitrary JavaScript execution on the Home Assistant administration page via usage of javascript: scheme URIs. This Cross-site Scripting (XSS) vulnerability can be executed on the Home Assistant frontend domain, which may be used for a full takeover of the Home Assistant account and installation. This issue has been addressed in version 2023.9.0 and all users are advised to upgrade. There are no known workarounds for this vulnerability.

Affected configurations

Vulners

NVD

Node

home-assistanthome-assistantRange<2023.9.0

VendorProductVersionCPE
home\-assistanthome\-assistant*cpe:2.3:a:home\-assistant:home\-assistant:*:*:*:*:*:*:*:*

Vendor	Product	Version	CPE
home\-assistant	home\-assistant	*	cpe:2.3:a:home\-assistant:home\-assistant::::::::

CNA Affected

[
  {
    "vendor": "home-assistant",
    "product": "core",
    "versions": [
      {
        "version": "< 2023.9.0",
        "status": "affected"
      }
    ]
  }
]