CVE-2026-45323: CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') in jpettitt meshcore-card
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.
AI Analysis
Technical Summary
The jpettitt meshcore-card for Home Assistant versions before 0.3.3 suffer from an improper neutralization of input during web page generation (CWE-79). Specifically, meshcore node names are rendered without HTML escaping, enabling nodes within direct or indirect radio range to inject and execute arbitrary JavaScript in the frontend interface of Home Assistant users. This cross-site scripting vulnerability can lead to full compromise of the affected user's session and potentially the Home Assistant environment. The vulnerability is addressed by updating to version 0.3.3, which includes proper input sanitization.
Potential Impact
Successful exploitation allows an attacker controlling a meshcore node within radio range to execute arbitrary JavaScript in the Home Assistant frontend of any user viewing the meshcore-card. This can lead to complete compromise of user sessions, data theft, and disruption of the Home Assistant service. The CVSS score of 9.6 reflects critical impact on confidentiality, integrity, and availability.
Mitigation Recommendations
Upgrade meshcore-card to version 0.3.3 or later, where this vulnerability is fixed by proper HTML escaping of node names. No other mitigation is indicated by the vendor advisory. Patch status is confirmed by the version update.
CVE-2026-45323: CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') in jpettitt meshcore-card
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.
CVSS v3.1
Score 9.6critical
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
The jpettitt meshcore-card for Home Assistant versions before 0.3.3 suffer from an improper neutralization of input during web page generation (CWE-79). Specifically, meshcore node names are rendered without HTML escaping, enabling nodes within direct or indirect radio range to inject and execute arbitrary JavaScript in the frontend interface of Home Assistant users. This cross-site scripting vulnerability can lead to full compromise of the affected user's session and potentially the Home Assistant environment. The vulnerability is addressed by updating to version 0.3.3, which includes proper input sanitization.
Potential Impact
Successful exploitation allows an attacker controlling a meshcore node within radio range to execute arbitrary JavaScript in the Home Assistant frontend of any user viewing the meshcore-card. This can lead to complete compromise of user sessions, data theft, and disruption of the Home Assistant service. The CVSS score of 9.6 reflects critical impact on confidentiality, integrity, and availability.
Mitigation Recommendations
Upgrade meshcore-card to version 0.3.3 or later, where this vulnerability is fixed by proper HTML escaping of node names. No other mitigation is indicated by the vendor advisory. Patch status is confirmed by the version update.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- GitHub_M
- Date Reserved
- 2026-05-11T20:50:30.539Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a188377e29bf47b5017903a
Added to database: 5/28/2026, 6:03:35 PM
Last enriched: 5/28/2026, 6:18:42 PM
Last updated: 5/29/2026, 5:16:31 PM
Views: 17
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