ESPHome is a system to control your ESP8266/ESP32 for Home Automation systems. Starting in version 2023.12.9 and prior to version 2024.2.2, editing the configuration file API in dashboard component of ESPHome version 2023.12.9 (command line installation and Home Assistant add-on) serves unsanitized data with `Content-Type: text/html; charset=UTF-8`, allowing a remote authenticated user to inject arbitrary web script and exfiltrate session cookies via Cross-Site scripting. It is possible for a malicious authenticated user to inject arbitrary Javascript in configuration files using a POST request to the /edit endpoint, the configuration parameter allows to specify the file to write. To trigger the XSS vulnerability, the victim must visit the page` /edit?configuration=[xss file]`. Abusing this vulnerability a malicious actor could perform operations on the dashboard on the behalf of a logged user, access sensitive information, create, edit and delete configuration files and flash firmware on managed boards. In addition to this, cookies are not correctly secured, allowing the exfiltration of session cookie values. Version 2024.2.2 contains a patch for this issue.
History

No history.

cve-icon MITRE

Status: PUBLISHED

Assigner: GitHub_M

Published: 2024-03-06T18:19:48.117Z

Updated: 2024-08-26T14:04:49.512Z

Reserved: 2024-02-22T18:08:38.873Z

Link: CVE-2024-27287

cve-icon Vulnrichment

Updated: 2024-08-02T00:27:59.920Z

cve-icon NVD

Status : Awaiting Analysis

Published: 2024-03-06T19:15:07.723

Modified: 2024-11-21T09:04:15.180

Link: CVE-2024-27287

cve-icon Redhat

No data.