ESPHome vulnerable to stored Cross-site Scripting in edit configuration file API
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | ||||||
|---|---|---|---|---|---|---|---|---|---|
| esphome | esphome | affected |
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No data.
| Vendor | Product | Versions |
|---|---|---|
| Esphome | Esphome | — |
| Source | ID | Title |
|---|---|---|
EUVD |
EUVD-2024-0886 | 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. |
Github GHSA |
GHSA-9p43-hj5j-96h5 | esphome vulnerable to stored Cross-site Scripting in edit configuration file API |
No CVSS v4.0
No CVSS v3.0
No CVSS v2
This CVE is not in the KEV list.
Exploit prediction score: < 1% (0.681% probability within 30 days)
Key SSVC decision points have not yet been added.
| Type | Values Removed | Values Added |
|---|---|---|
| CPEs | cpe:2.3:a:esphome:esphome:*:*:*:*:*:*:*:* |
| Type | Values Removed | Values Added |
|---|---|---|
| CPEs | cpe:2.3:o:esphome:esphome:*:*:*:*:*:*:*:* |