Vulnerability details
CVE-2026-33044
home-assistant core
Home Assistant has stored XSS in Map-card through malicious device name
CVSS 4.0
7.3High
Official description
Home Assistant is open source home automation software that puts local control and privacy first. Starting in version 2020.02 and prior to version 2026.01, 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. Version 2026.01 fixes the issue.
CVSS scores
| Score | Version | Source | Vector |
|---|---|---|---|
| 7.3High | 4.0 | CVEProject cvelistV5 (CNA) (GitHub_M) | CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:A/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:P |
Affected products
| Vendor | Product | Versions | Source |
|---|---|---|---|
| home-assistant | core | >= 2020.02, < 2026.01 | CVEProject cvelistV5 (CNA) |
References and advisories
1- https://github.com/home-assistant/core/security/advisories/GHSA-r584-6283-p7xc x_refsource_CONFIRM
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Details
- Published
- 2026-03-27
- Last updated
- 2026-04-02
- State
- Published
- Assigner (CNA)
- GitHub_M
Exploit prediction (EPSS)
0.23%
Probability of exploitation in 30 days
13.9%
Percentile (among all CVEs)
SSVC assessment (CISA)
- Automatable
- No
- Exploitation
- Proof of concept
- Technical impact
- Total
Weaknesses (CWE)
- CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')