CVE-2026-45323 PUBLISHED

MeshCore Card: XSS vulnerability through meshcore node name

Assigner: GitHub_M
Reserved: 11.05.2026 Published: 28.05.2026 Updated: 28.05.2026

MeshCore Card provides MeshCore Lovelace card for Home Assistant. Prior to 0.3.3, Meshcore node names are rendered without HTML escaping in meshcore-card, allowing any node within direct or indirect (repeated) radio range to execute arbitrary javascript in the Home Assistant frontend of anyone viewing the card. This vulnerability is fixed in 0.3.3.

Metrics

CVSS 3.1

CVSS Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H
CVSS Score: 9.6

Attack Vector	Network	Scope	Changed
Attack Complexity	Low	Confidentiality Impact	High
Privileges Required	None	Integrity Impact	High
User Interaction	Required	Availability Impact	High

CVSS 3.1

Product Status

Vendor	jpettitt
Product	meshcore-card
Versions	Version < 0.3.3 is affected

References

https://github.com/jpettitt/meshcore-card/security/advisories/GHSA-5vrg-xpcj-xppc

Problem Types

CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') CWE