HIGH 8.3 NVD
CVE-2026-45733
Trilium Notes is a cross-platform, hierarchical note taking application focused on building large personal knowledge bases. Prior to 0.103.0, the #iconClass lab
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.
References
- https://github.com/TriliumNext/Trilium/commit/c06939448bcc2879fc3c4d328ff7dc63ed6b5009
- https://github.com/TriliumNext/Trilium/releases/tag/v0.103.0
- https://github.com/TriliumNext/Trilium/security/advisories/GHSA-h45q-4qc4-8hhg
- https://github.com/TriliumNext/Trilium/security/advisories/GHSA-h45q-4qc4-8hhg
This high severity vulnerability with a CVSS score of 8.3 was published on 2026-08-18 via NVD.
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