{"id":"CVE-2026-45733","aliases":[],"url":"https://o3.security/vulnerability/CVE-2026-45733","summary":"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…","details":"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.","published":"2026-08-18T15:16:54.270","modified":"2026-08-18T15:16:54.270","cvss":{"score":8.3,"severity":"HIGH","vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:H/I:H/A:L"},"epss":null,"cisaKev":null,"exploitsKnown":null,"affectedPackages":[],"fix":{"url":"https://github.com/TriliumNext/Trilium/commit/c06939448bcc2879fc3c4d328ff7dc63ed6b5009","label":"TriliumNext/Trilium@c069394"},"references":[{"type":"WEB","url":"https://github.com/TriliumNext/Trilium/commit/c06939448bcc2879fc3c4d328ff7dc63ed6b5009"},{"type":"WEB","url":"https://github.com/TriliumNext/Trilium/releases/tag/v0.103.0"},{"type":"WEB","url":"https://github.com/TriliumNext/Trilium/security/advisories/GHSA-h45q-4qc4-8hhg"}],"provenance":{"sources":["OSV.dev","NVD","FIRST.org (EPSS)"],"lastVerified":"2026-08-18T15:16:54.270"}}