What is CVE-2026-45323?

CVE-2026-45323 is a critical-severity vulnerability in Jpettitt Meshcore-card, classified under Cross-site Scripting. CVSS score: 9.6/10. Published 2026-05-28.

How severe is CVE-2026-45323?

Critical severity. CVSS v3 base score is 9.6 out of 10.

XSS in Jpettitt Meshcore-card

CVE-2026-45323

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 arbitr…

Vulnerability class: XSS (Cross-Site Scripting)

EPSS: 0.000 (14.6th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.6 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H.

Affected products

Jpettitt Meshcore-card — versions < 0.3.3
Jpettitt Meshcore_card

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

security-advisories@github.com (x_refsource_CONFIRM, Exploit, Mitigation, Vendor Advisory)

Frequently asked questions

What is CVE-2026-45323?: CVE-2026-45323 is a critical-severity vulnerability in Jpettitt Meshcore-card, classified under Cross-site Scripting. CVSS score: 9.6/10. Published 2026-05-28.
How severe is CVE-2026-45323?: Critical severity. CVSS v3 base score is 9.6 out of 10.