How serious is CVE-2024-27287?

This vulnerability has a CVSS score of 8.7 out of 10, classified as HIGH severity. Proof-of-concept exploit code is publicly available, making this an active threat.

Is there exploit code available for CVE-2024-27287?

Yes, proof-of-concept exploit code for CVE-2024-27287 is publicly available on GitHub and security research platforms. This increases the risk of active exploitation.

Which products are affected by CVE-2024-27287?

CVE-2024-27287 affects esphome esphome. Check the full CVE details for specific version information.

How do I fix CVE-2024-27287?

To remediate CVE-2024-27287, check for security patches from esphome. Apply all available updates and security patches. If no patch is available, implement recommended workarounds or security controls to mitigate the risk.

CVE-2024-27287

High

|8.7

Exploit Available

Plain English Summary

AI-powered analysis for quick understanding

This vulnerability allows an attacker who is already logged into the ESPHome dashboard to inject malicious scripts, potentially stealing session cookies and taking control of the dashboard to manipulate configuration files and firmware. To exploit this, the attacker needs to craft a specific request and trick another logged-in user into visiting a modified edit page.

Technical Description

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.

CVSS Vector Analysis

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredLow

User InteractionRequired

Confidentiality ImpactHigh

Integrity ImpactHigh

Availability ImpactNone

ScopeChanged

Vector String

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

Exploit Resources

Search for proof-of-concept code and exploit modules

GitHub Search Exploit-DB Nuclei Templates Metasploit Vulners

Official References

NIST NVD

Est. Bounty

$4,579($1K-$5K)

Vendor Response

Grade FPatched in 726 days

Quick Information

Published

Mar 6, 2024

about 2 years ago

Last Modified

Mar 3, 2026

about 1 month ago

Vendor

esphome

Product

esphome