GHSA-r584-6283-p7xc

Suggest an improvement
Source
https://github.com/advisories/GHSA-r584-6283-p7xc
Import Source
https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/03/GHSA-r584-6283-p7xc/GHSA-r584-6283-p7xc.json
JSON Data
https://api.osv.dev/v1/vulns/GHSA-r584-6283-p7xc
Aliases
  • CVE-2026-33044
Published
2026-03-27T20:33:22Z
Modified
2026-03-27T22:03:50.256790Z
Severity
  • 1.1 (Low) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:A/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:P CVSS Calculator
Summary
Home Assistant has stored XSS in Map-card through malicious device name
Details

Summary

An authenticated party can add a malicious name to their device entity, allowing for Cross-Site Scripting attacks against anyone who can see a dashboard with a Map-card which includes that entity. It requires that the victim hovers over an information point (The lines or the dots representing that device's movement, as shown in the screenshot below, with the example showing a html-injection using <s> to strikethrough the text) <img width="348" height="355" alt="image" src="https://github.com/user-attachments/assets/1af3ef33-3a72-4816-8ade-e6405aace176" />

This allows an authenticated user to execute JavaScript in the context of any other users accessing a dashboard.

Details

The vulnerability exists in the map-card by adding a malicious entity and having the property hours_to_show set. See example below, with the malicious entity being Pixel 9 <s> Fold Robin {{7*7}}: Map card with malicious device entity: <img width="338" height="332" alt="image" src="https://github.com/user-attachments/assets/15229cc3-1b69-438c-9ee5-cbfa9483aec9" />

YAML-view of same card: <img width="338" height="198" alt="image" src="https://github.com/user-attachments/assets/cd579266-75c3-4cdf-9d08-1544a6887feb" />

This issue largely resembles the issue documented in: CVE-2025-62172, but with an entity which can be displayed in a Map, instead of in an energy-dashboard.

PoC

  1. Register a new sensor (or device) or change the name of an existing one, which provides a location

  2. Change the name to something malicious, for example test <img src=x onerror=alert(document.domain) /> For a new entity, it should work when setting the name. For old entities, go here: <img width="1300" height="411" alt="image" src="https://github.com/user-attachments/assets/d240549e-f26c-4617-89d7-5480451ae5a3" /> <img width="1383" height="885" alt="image" src="https://github.com/user-attachments/assets/94db6186-ad54-476c-92a3-9f6870b0c862" /> <img width="387" height="436" alt="image" src="https://github.com/user-attachments/assets/f4c4b9f6-b1e7-4b50-9012-3be31c617be4" /> <br> <img width="392" height="515" alt="image" src="https://github.com/user-attachments/assets/a0f24d2f-cc18-4ef7-9071-40376dbb38c1" />

  3. Add the entity to a map card, which has the "hours to show"-attribute set, to display movement history <img width="296" height="383" alt="image" src="https://github.com/user-attachments/assets/b2db55b6-3d4b-4ab0-91fe-fc26813ad5ff" /> <img width="692" height="410" alt="image" src="https://github.com/user-attachments/assets/aec15e07-12c0-4abf-ba73-979736131c7c" />

<img width="694" height="302" alt="image" src="https://github.com/user-attachments/assets/e4bb7cac-fe85-41eb-963c-1743e78d937c" />

(The left arrow showing the custom setting, and the right arrow showing a data point which needs to be hovered)

  1. The payload executes when hovering a data-point (here shown with an "alert(document.domain"-payload) <img width="504" height="118" alt="image" src="https://github.com/user-attachments/assets/9f24e1fe-949f-4fa5-9e4f-781828a1343b" />

Impact

The impact of this vulnerability is that a user can target other users of the system and perform account takeover through client side exploitation of XSS.

In the context of this system, I believe the vulnerability to be less impactful than the CVSS metric describes, as it requires a specific setup (map-card with attribute hours_to_show set, as this brings up the trail). It is interesting to note that any user who sets this attribute, will be highly likely to trigger the vulnerability through normal use. It also has no potential for being imported through seemingly innocent integrations and can only be set explicitly by another invited user, a device name, a cloud service or through social engineering. Other devices which has the same sensor can trigger the same vulnerability, and I expect there to exists cloud-based devices that would enable a threat actor to deliver the payload remotely.

Suggested criticality: Medium

Credit: Robin Lunde - https://robinlunde.com

Database specific 
{
    "github_reviewed": true,
    "cwe_ids": [
        "CWE-79",
        "CWE-80"
    ],
    "nvd_published_at": "2026-03-27T20:16:30Z",
    "github_reviewed_at": "2026-03-27T20:33:22Z",
    "severity": "LOW"
}
References

Affected packages

PyPI / homeassistant

Package

Name
homeassistant
View open source insights on deps.dev
Purl
pkg:pypi/homeassistant

Affected ranges

Type
ECOSYSTEM
Events
Introduced
2020.02
Fixed
2026.01

Affected versions

2020.*
2020.12.0
2020.12.1
2020.12.2
2021.*
2021.1.0b0
2021.1.0b1
2021.1.0b2
2021.1.0b3
2021.1.0
2021.1.1
2021.1.2
2021.1.3
2021.1.4
2021.1.5
2021.2.0b0
2021.2.0b1
2021.2.0b2
2021.2.0b3
2021.2.0b4
2021.2.0b5
2021.2.0
2021.2.1
2021.2.2
2021.2.3
2021.3.0b0
2021.3.0b1
2021.3.0b2
2021.3.0b3
2021.3.0b4
2021.3.0b5
2021.3.0b6
2021.3.0b7
2021.3.0
2021.3.1
2021.3.2
2021.3.3
2021.3.4
2021.4.0b0
2021.4.0b1
2021.4.0b2
2021.4.0b3
2021.4.0b4
2021.4.0b5
2021.4.0b6
2021.4.0
2021.4.1
2021.4.2
2021.4.3
2021.4.4
2021.4.5
2021.4.6
2021.5.0b0
2021.5.0b1
2021.5.0b2
2021.5.0b3
2021.5.0b4
2021.5.0b5
2021.5.0b6
2021.5.0b7
2021.5.0b8
2021.5.0
2021.5.1
2021.5.2
2021.5.3
2021.5.4
2021.5.5
2021.6.0b0
2021.6.0b1
2021.6.0b2
2021.6.0b3
2021.6.0b4
2021.6.0b5
2021.6.0
2021.6.1
2021.6.2
2021.6.3
2021.6.4
2021.6.5
2021.6.6
2021.7.0b0
2021.7.0b1
2021.7.0b2
2021.7.0b3
2021.7.0b4
2021.7.0b5
2021.7.0b6
2021.7.0
2021.7.1
2021.7.2
2021.7.3
2021.7.4
2021.8.0b0
2021.8.0b1
2021.8.0b2
2021.8.0b3
2021.8.0b4
2021.8.0b5
2021.8.0b6
2021.8.0b7
2021.8.0b8
2021.8.0b9
2021.8.0b10
2021.8.0
2021.8.1
2021.8.2
2021.8.3
2021.8.4
2021.8.5
2021.8.6
2021.8.7
2021.8.8
2021.9.0b0
2021.9.0b1
2021.9.0b2
2021.9.0b3
2021.9.0b4
2021.9.0b5
2021.9.0b6
2021.9.0b7
2021.9.0
2021.9.1
2021.9.2
2021.9.3
2021.9.4
2021.9.5
2021.9.6
2021.9.7
2021.10.0b0
2021.10.0b1
2021.10.0b2
2021.10.0b3
2021.10.0b4
2021.10.0b5
2021.10.0b6
2021.10.0b7
2021.10.0b9
2021.10.0
2021.10.1
2021.10.2
2021.10.3
2021.10.4
2021.10.5
2021.10.6
2021.10.7
2021.11.0b0
2021.11.0b1
2021.11.0b2
2021.11.0b3
2021.11.0b4
2021.11.0b5
2021.11.0
2021.11.1
2021.11.2
2021.11.3
2021.11.4
2021.11.5
2021.12.0b0
2021.12.0b1
2021.12.0b2
2021.12.0b3
2021.12.0b4
2021.12.0b5
2021.12.0b6
2021.12.0b7
2021.12.0
2021.12.1
2021.12.2
2021.12.3
2021.12.4
2021.12.5
2021.12.6
2021.12.7
2021.12.8
2021.12.9
2021.12.10
2022.*
2022.2.0b0
2022.2.0b1
2022.2.0b2
2022.2.0b3
2022.2.0b4
2022.2.0b5
2022.2.0b6
2022.2.0
2022.2.1
2022.2.2
2022.2.3
2022.2.4
2022.2.5
2022.2.6
2022.2.7
2022.2.8
2022.2.9
2022.3.0b0
2022.3.0b1
2022.3.0b2
2022.3.0b3
2022.3.0b4
2022.3.0b5
2022.3.0b6
2022.3.0
2022.3.1
2022.3.2
2022.3.3
2022.3.4
2022.3.5
2022.3.6
2022.3.7
2022.3.8
2022.4.0b0
2022.4.0b1
2022.4.0b2
2022.4.0b3
2022.4.0b4
2022.4.0b5
2022.4.0
2022.4.1
2022.4.2
2022.4.3
2022.4.4
2022.4.5
2022.4.6
2022.4.7
2022.5.0b0
2022.5.0b1
2022.5.0b2
2022.5.0b3
2022.5.0b4
2022.5.0b5
2022.5.0b6
2022.5.0b7
2022.5.0
2022.5.1
2022.5.2
2022.5.3
2022.5.4
2022.5.5
2022.6.0b0
2022.6.0b1
2022.6.0b2
2022.6.0b3
2022.6.0b4
2022.6.0b5
2022.6.0b6
2022.6.0b7
2022.6.0
2022.6.1
2022.6.2
2022.6.3
2022.6.4
2022.6.5
2022.6.6
2022.6.7
2022.7.0b0
2022.7.0b1
2022.7.0b2
2022.7.0b3
2022.7.0b4
2022.7.0b5
2022.7.0
2022.7.1
2022.7.2
2022.7.3
2022.7.4
2022.7.5
2022.7.6
2022.7.7
2022.8.0b0
2022.8.0b1
2022.8.0b2
2022.8.0b3
2022.8.0b4
2022.8.0b5
2022.8.0b6
2022.8.0b7
2022.8.0
2022.8.1
2022.8.2
2022.8.3
2022.8.4
2022.8.5
2022.8.6
2022.8.7
2022.9.0b0
2022.9.0b1
2022.9.0b2
2022.9.0b3
2022.9.0b4
2022.9.0b5
2022.9.0b6
2022.9.0
2022.9.1
2022.9.2
2022.9.3
2022.9.4
2022.9.5
2022.9.6
2022.9.7
2022.10.0b0
2022.10.0b1
2022.10.0b2
2022.10.0b3
2022.10.0b4
2022.10.0b5
2022.10.0b6
2022.10.0
2022.10.1
2022.10.2
2022.10.3
2022.10.4
2022.10.5
2022.11.0b0
2022.11.0b1
2022.11.0b2
2022.11.0b3
2022.11.0b4
2022.11.0b5
2022.11.0b6
2022.11.0b7
2022.11.0
2022.11.1
2022.11.2
2022.11.3
2022.11.4
2022.11.5
2022.12.0b0
2022.12.0b1
2022.12.0b2
2022.12.0b3
2022.12.0b4
2022.12.0b5
2022.12.0b6
2022.12.0b7
2022.12.0
2022.12.1
2022.12.2
2022.12.3
2022.12.4
2022.12.5
2022.12.6
2022.12.7
2022.12.8
2022.12.9
2023.*
2023.1.0b0
2023.1.0b1
2023.1.0b2
2023.1.0b3
2023.1.0b4
2023.1.0b5
2023.1.0
2023.1.1
2023.1.2
2023.1.3
2023.1.4
2023.1.5
2023.1.6
2023.1.7
2023.2.0b0
2023.2.0b1
2023.2.0b2
2023.2.0b3
2023.2.0b4
2023.2.0b5
2023.2.0b6
2023.2.0b7
2023.2.0b8
2023.2.0b9
2023.2.0
2023.2.1
2023.2.2
2023.2.3
2023.2.4
2023.2.5
2023.3.0b0
2023.3.0b1
2023.3.0b2
2023.3.0b3
2023.3.0b4
2023.3.0b5
2023.3.0b6
2023.3.0b7
2023.3.0
2023.3.1
2023.3.2
2023.3.3
2023.3.4
2023.3.5
2023.3.6
2023.4.0b0
2023.4.0b1
2023.4.0b2
2023.4.0b3
2023.4.0b4
2023.4.0b5
2023.4.0b6
2023.4.0b7
2023.4.0
2023.4.1
2023.4.2
2023.4.3
2023.4.4
2023.4.5
2023.4.6
2023.5.0b0
2023.5.0b1
2023.5.0b2
2023.5.0b3
2023.5.0b4
2023.5.0b5
2023.5.0b6
2023.5.0b7
2023.5.0b8
2023.5.0
2023.5.1
2023.5.2
2023.5.3
2023.5.4
2023.6.0b0
2023.6.0b1
2023.6.0b2
2023.6.0b3
2023.6.0b4
2023.6.0b5
2023.6.0b6
2023.6.0
2023.6.1
2023.6.2
2023.6.3
2023.7.0b0
2023.7.0b1
2023.7.0b2
2023.7.0b3
2023.7.0b4
2023.7.0b5
2023.7.0b6
2023.7.0
2023.7.1
2023.7.2
2023.7.3
2023.8.0b0
2023.8.0b1
2023.8.0b2
2023.8.0b3
2023.8.0b4
2023.8.0
2023.8.1
2023.8.2
2023.8.3
2023.8.4
2023.9.0b0
2023.9.0b1
2023.9.0b2
2023.9.0b3
2023.9.0b4
2023.9.0b5
2023.9.0b6
2023.9.0
2023.9.1
2023.9.2
2023.9.3
2023.10.0b0
2023.10.0b1
2023.10.0b2
2023.10.0b3
2023.10.0b4
2023.10.0b6
2023.10.0b7
2023.10.0b9
2023.10.0
2023.10.1
2023.10.2
2023.10.3
2023.10.4
2023.10.5
2023.11.0b0
2023.11.0b1
2023.11.0b2
2023.11.0b3
2023.11.0b4
2023.11.0b5
2023.11.0b6
2023.11.0
2023.11.1
2023.11.2
2023.11.3
2023.12.0b0
2023.12.0b1
2023.12.0b2
2023.12.0b3
2023.12.0b4
2023.12.0b5
2023.12.0
2023.12.1
2023.12.2
2023.12.3
2023.12.4
2024.*
2024.1.0b0
2024.1.0b1
2024.1.0b2
2024.1.0b3
2024.1.0b4
2024.1.0b5
2024.1.0b6
2024.1.0b7
2024.1.0b8
2024.1.0
2024.1.1
2024.1.2
2024.1.3
2024.1.4
2024.1.5
2024.1.6
2024.2.0b0
2024.2.0b1
2024.2.0b2
2024.2.0b3
2024.2.0b4
2024.2.0b5
2024.2.0b6
2024.2.0b7
2024.2.0b8
2024.2.0b9
2024.2.0b10
2024.2.0b11
2024.2.0
2024.2.1
2024.2.2
2024.2.3
2024.2.4
2024.2.5
2024.3.0b0
2024.3.0b1
2024.3.0b2
2024.3.0b3
2024.3.0b4
2024.3.0b5
2024.3.0b6
2024.3.0b7
2024.3.0b8
2024.3.0
2024.3.1
2024.3.2
2024.3.3
2024.4.0b0
2024.4.0b1
2024.4.0b2
2024.4.0b3
2024.4.0b4
2024.4.0b5
2024.4.0b6
2024.4.0b7
2024.4.0b8
2024.4.0b9
2024.4.0
2024.4.1
2024.4.2
2024.4.3
2024.4.4
2024.5.0b0
2024.5.0b1
2024.5.0b2
2024.5.0b3
2024.5.0b4
2024.5.0b5
2024.5.0b6
2024.5.0b7
2024.5.0
2024.5.1
2024.5.2
2024.5.3
2024.5.4
2024.5.5
2024.6.0b0
2024.6.0b1
2024.6.0b2
2024.6.0b3
2024.6.0b4
2024.6.0b5
2024.6.0b6
2024.6.0b7
2024.6.0b8
2024.6.0b9
2024.6.0
2024.6.1
2024.6.2
2024.6.3
2024.6.4
2024.7.0b0
2024.7.0b1
2024.7.0b2
2024.7.0b3
2024.7.0b4
2024.7.0b5
2024.7.0b6
2024.7.0b7
2024.7.0b8
2024.7.0b9
2024.7.0b10
2024.7.0b11
2024.7.0
2024.7.1
2024.7.2
2024.7.3
2024.7.4
2024.8.0b0
2024.8.0b1
2024.8.0b2
2024.8.0b3
2024.8.0b4
2024.8.0b5
2024.8.0b6
2024.8.0b7
2024.8.0b8
2024.8.0b9
2024.8.0
2024.8.1
2024.8.2
2024.8.3
2024.9.0b0
2024.9.0b1
2024.9.0b2
2024.9.0b3
2024.9.0b4
2024.9.0b5
2024.9.0
2024.9.1
2024.9.2
2024.9.3
2024.10.0b0
2024.10.0b1
2024.10.0b2
2024.10.0b3
2024.10.0b4
2024.10.0b5
2024.10.0b6
2024.10.0b7
2024.10.0b8
2024.10.0b9
2024.10.0b10
2024.10.0b11
2024.10.0b12
2024.10.0
2024.10.1
2024.10.2
2024.10.3
2024.10.4
2024.11.0b0
2024.11.0b1
2024.11.0b2
2024.11.0b3
2024.11.0b4
2024.11.0b5
2024.11.0b6
2024.11.0b7
2024.11.0b8
2024.11.0b9
2024.11.0
2024.11.1
2024.11.2
2024.11.3
2024.12.0b0
2024.12.0b1
2024.12.0b2
2024.12.0b3
2024.12.0b4
2024.12.0b5
2024.12.0b6
2024.12.0
2024.12.1
2024.12.2
2024.12.3
2024.12.4
2024.12.5
2025.*
2025.1.0b0
2025.1.0b1
2025.1.0b2
2025.1.0b3
2025.1.0b4
2025.1.0b5
2025.1.0b6
2025.1.0b7
2025.1.0b8
2025.1.0b9
2025.1.0
2025.1.1
2025.1.2
2025.1.3
2025.1.4
2025.2.0b0
2025.2.0b1
2025.2.0b2
2025.2.0b3
2025.2.0b4
2025.2.0b5
2025.2.0b6
2025.2.0b7
2025.2.0b8
2025.2.0b9
2025.2.0b10
2025.2.0b11
2025.2.0b12
2025.2.0
2025.2.1
2025.2.2
2025.2.3
2025.2.4
2025.2.5
2025.3.0b0
2025.3.0b1
2025.3.0b2
2025.3.0b3
2025.3.0b4
2025.3.0b5
2025.3.0b6
2025.3.0b7
2025.3.0b8
2025.3.0
2025.3.1
2025.3.2
2025.3.3
2025.3.4
2025.4.0b0
2025.4.0b1
2025.4.0b2
2025.4.0b3
2025.4.0b4
2025.4.0b5
2025.4.0b6
2025.4.0b7
2025.4.0b8
2025.4.0b9
2025.4.0b10
2025.4.0b11
2025.4.0b12
2025.4.0b13
2025.4.0b14
2025.4.0b15
2025.4.0
2025.4.1
2025.4.2
2025.4.3
2025.4.4
2025.5.0b0
2025.5.0b1
2025.5.0b2
2025.5.0b3
2025.5.0b4
2025.5.0b5
2025.5.0b6
2025.5.0b7
2025.5.0b8
2025.5.0b9
2025.5.0b10
2025.5.0
2025.5.1
2025.5.2
2025.5.3
2025.6.0b0
2025.6.0b1
2025.6.0b2
2025.6.0b3
2025.6.0b4
2025.6.0b5
2025.6.0b6
2025.6.0b7
2025.6.0b8
2025.6.0b9
2025.6.0
2025.6.1
2025.6.2
2025.6.3
2025.7.0b0
2025.7.0b1
2025.7.0b2
2025.7.0b3
2025.7.0b4
2025.7.0b5
2025.7.0b6
2025.7.0b7
2025.7.0b8
2025.7.0b9
2025.7.0
2025.7.1
2025.7.2
2025.7.3
2025.7.4
2025.8.0b0
2025.8.0b1
2025.8.0b2
2025.8.0b3
2025.8.0b4
2025.8.0b5
2025.8.0
2025.8.1
2025.8.2
2025.8.3
2025.9.0b0
2025.9.0b1
2025.9.0b2
2025.9.0b3
2025.9.0b4
2025.9.0b5
2025.9.0b6
2025.9.0
2025.9.1
2025.9.2
2025.9.3
2025.9.4
2025.10.0b0
2025.10.0b1
2025.10.0b2
2025.10.0b4
2025.10.0b5
2025.10.0b6
2025.10.0b7
2025.10.0
2025.10.1
2025.10.2
2025.10.3
2025.10.4
2025.11.0b0
2025.11.0b1
2025.11.0b2
2025.11.0b3
2025.11.0b4
2025.11.0b5
2025.11.0b6
2025.11.0
2025.11.1
2025.11.2
2025.11.3
2025.12.0b0
2025.12.0b1
2025.12.0b2
2025.12.0b3
2025.12.0b4
2025.12.0b5
2025.12.0b6
2025.12.0b7
2025.12.0b8
2025.12.0b9
2025.12.0
2025.12.1
2025.12.2
2025.12.3
2025.12.4
2025.12.5
2026.*
2026.1.0b0
2026.1.0b1
2026.1.0b2
2026.1.0b3
2026.1.0b4
2026.1.0b5

Database specific

source 
"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/03/GHSA-r584-6283-p7xc/GHSA-r584-6283-p7xc.json"