CVE-2024-27287

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.
Configurations

Configuration 1 (hide)

cpe:2.3:o:esphome:esphome:*:*:*:*:*:*:*:*

History

03 Dec 2025, 21:06

Type Values Removed Values Added
First Time Esphome esphome
Esphome
CPE cpe:2.3:o:esphome:esphome:*:*:*:*:*:*:*:*
References () https://github.com/esphome/esphome/commit/37d2b3c7977a4ccbec59726ca7549cb776661455 - () https://github.com/esphome/esphome/commit/37d2b3c7977a4ccbec59726ca7549cb776661455 - Patch
References () https://github.com/esphome/esphome/security/advisories/GHSA-9p43-hj5j-96h5 - () https://github.com/esphome/esphome/security/advisories/GHSA-9p43-hj5j-96h5 - Vendor Advisory, Technical Description

Information

Published : 2024-03-06 19:15

Updated : 2025-12-03 21:06


NVD link : CVE-2024-27287

Mitre link : CVE-2024-27287

CVE.ORG link : CVE-2024-27287


JSON object : View

Products Affected

esphome

  • esphome
CWE
CWE-79

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')