CVE-2026-45323

CRITICAL

MeshCore Card: XSS vulnerability through meshcore node name

Title source: cna

Description

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.

References (1)

Core 1

Core References

X_Refsource_Confirm x_refsource_confirm

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

Scores

CVSS v3 9.6

EPSS 0.0027

EPSS Percentile 17.7%

Attack Vector NETWORK

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

CISA SSVC

Vulnrichment

Exploitation poc

Automatable no

Technical Impact total

Details

CWE

CWE-79

Status published

Products (2)

jpettitt/meshcore-card < 0.3.3

jpettitt/meshcore_card < 0.3.3

Published May 28, 2026

Tracked Since May 28, 2026