CVE-2026-45733

HighCVSS 8.3/10Last modified Oct 22, 2026

Description

Trilium Notes is a cross-platform, hierarchical note taking application focused on building large personal knowledge bases. Prior to 0.103.0, the #iconClass label value is returned raw by getNoteIcon() and inserted without HTML attribute encoding into class attributes in apps/client/src/widgets/quick_search.ts and apps/client/src/services/note_autocomplete.ts, allowing a stored payload to execute automatically when a victim opens a new tab or uses Ctrl+J and, because Electron enables nodeIntegration and disables contextIsolation, run operating-system commands as the victim. This issue is fixed in version 0.103.0.

Metrics

CVSS 3.1 8.3/10CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:H/I:H/A:L

Weakness enumeration

CWE-79 CWE-83 CWE-693

Affected software

No affected versions have been published.

Timeline

Published: Aug 18, 2026
Last modified: Oct 22, 2026
NVD status: Deferred

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