Lack of XFO header allows clickjacking in Home Assistant Core
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- Required
- Attack complexity
- Low
- Impact type
- Spoofing
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- Fixed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-1021.
Summary
Home assistant is an open source home automation. Home Assistant server does not set any HTTP security headers, including the X-Frame-Options header, which specifies whether the web page is allowed to be framed. The omission of this and correlating headers facilitates covert clickjacking attacks and alternative exploit opportunities, such as the vector described in this security advisory. This fault incurs major risk, considering the ability to trick users into installing an external and malicious add-on with minimal user interaction, which would enable Remote Code Execution (RCE) within the Home Assistant application. 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.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Total
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| home-assistant | core | before 2023.9.0 | 2023.9.0 | Patch available | CNA |
- core Vendorhome-assistant Affected before 2023.9.0 Fixed in 2023.9.0 Patch available CNA
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:home-assistant:home-assistant:*:*:*:*:*:*:*:* | before 2023.9.0 | Vulnerable | home-assistant |
- cpe:2.3:a:home-assistant:home-assistant:*:*:*:*:*:*:*:* Versions before 2023.9.0 Vulnerable ·home-assistant
Remediation
- Fix · CNA core (home-assistant) Fixed in 2023.9.0
Timeline
- 2026-10-02 Threatist record created from CVE-2023-41897
References
More Home-assistant vulnerabilities
- TI-2023-12210 Improper authentication in home-assistant core CVSS 3.1CRITICAL 10.0
- TI-2026-25491 Home Assistant has stored XSS in history-graphs CVSS 4.0HIGH 7.3
- TI-2026-25490 Home Assistant has stored XSS in Map-card through malicious device name CVSS 4.0HIGH 7.3
- TI-2026-39212 Home Assistant: Konnected alarm-panel switch state and zone topology disclosed to unauthenticated actors on the LAN CVSS 3.1HIGH 7.6
- TI-2025-40423 Home Assistant Core before v2025.8.0 is vulnerable to Directory Traversal. CVSS 3.1MEDIUM 4.0
- TI-2023-22287 Cross-site Scripting via auth_callback login in Home Assistant Core CVSS 3.1CRITICAL 9.6
Sources
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences