{"id":"CVE-2026-45733","summary":"Trilium: Stored XSS in note icon rendering leads to Remote Code Execution in Electron desktop app","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.","aliases":["GHSA-h45q-4qc4-8hhg"],"modified":"2026-09-20T11:30:57.894718034Z","published":"2026-08-18T15:13:16.946Z","database_specific":{"cna_assigner":"GitHub_M","cwe_ids":["CWE-693","CWE-79","CWE-83"],"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/45xxx/CVE-2026-45733.json"},"references":[{"type":"WEB","url":"https://github.com/TriliumNext/Trilium/releases/tag/v0.103.0"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/45xxx/CVE-2026-45733.json"},{"type":"ADVISORY","url":"https://github.com/TriliumNext/Trilium/security/advisories/GHSA-h45q-4qc4-8hhg"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-45733"},{"type":"FIX","url":"https://github.com/TriliumNext/Trilium/commit/c06939448bcc2879fc3c4d328ff7dc63ed6b5009"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/triliumnext/trilium","events":[{"introduced":"0"},{"fixed":"c06939448bcc2879fc3c4d328ff7dc63ed6b5009"},{"fixed":"44f5be88b776078fe268dc9877411cb144df3a46"}],"database_specific":{"source":["AFFECTED_FIELD","REFERENCES"],"extracted_events":[{"introduced":"0"},{"fixed":"0.103.0"}]}}],"versions":["web-clipper-v1.1.1","web-clipper-v1.1.0","v0.101.1","v0.99.4","v0.99.2","v0.99.0","v0.98.1","v0.98.0","v0.97.0","v0.97.2","v0.96.0","v0.63.6","v0.62.2","v0.62.1-beta","v0.62.0-beta","v0.61.4-beta","v0.61.3-beta","v0.61.2-beta","v0.61.1-beta","v0.61.0-beta","v0.59.1","v0.59.0-beta","v0.58.0-beta","v0.57.3","v0.57.2","v0.57.1-beta","v0.57.0-beta","v0.56.1","v0.56.0-beta","v0.55.1","v0.55.0-beta","v0.54.1-beta","v0.54.0-beta","v0.53.2","v0.53.1-beta","v0.53.0-beta","v0.52.2","v0.52.1-beta","v0.52.0-beta","v0.51.2","v0.51.1-beta","v0.51.0-beta","v0.50.1","v0.50.0-beta","v0.49.4","v0.49.3","v0.49.2-beta","v0.49.1-beta","v0.49.0-beta","v0.48.6.1","v0.48.6-docker","v0.48.6","v0.48.5","v0.48.4","v0.48.3","v0.48.2","v0.48.1-beta","v0.48.0-beta","v0.47.0-beta","v0.46.3-beta","v0.46.2-beta","v0.46.1-beta","v0.46.0-beta","v0.44.4","v0.44.3-beta","v0.44.2-beta","v0.44.1-beta","v0.44.0-beta","v0.42.1","v0.42.0-beta","v0.41.6","v0.41.5","v0.41.4-beta","v0.41.3-beta","0.41.3","v0.41.2-beta","v0.41.1-beta","v0.41.0-beta","v0.40.0-beta","v0.39.3","v0.39.2-beta","v0.39.1-beta","v0.39.0-beta","v0.38.2","v0.38.1-beta","v0.38.0-beta","v0.37.2","v0.37.1-beta","v0.37.0-beta","v0.36.1-beta","v0.36.0-beta","v0.35.1","v0.35.0-beta","v0.34.1","v0.34.0-beta","v0.33.3","v0.33.2-beta","v0.33.1-beta","v0.33.0-beta","v0.32.3","v0.32.2-beta","v0.32.1-beta","v0.32.0-beta","v0.31.3","v0.31.2-beta","v0.31.1-beta","v0.31.0-beta","v0.30.3-beta","v0.30.2-beta","v0.30.1-beta","v0.30.0-beta","v0.29.1","v0.29.0-beta","v0.28.3","v0.28.2","v0.28.1-beta","v0.28.0-beta","v0.27.4","v0.27.3","v0.27.2-beta","v0.27.1-beta","v0.27.0-beta","v0.26.1","v0.26.0-beta","v0.25.1-beta","v0.25.0-beta","v0.24.5","v0.24.4-beta","v0.24.3-beta","v0.24.2-beta","v0.24.1-beta","v0.24.0-beta","v0.23.0","v0.22.1","v0.22.0","v0.21.0","v0.20.2","v0.20.1","v0.20.0","v0.19.1","v0.19.0","v0.18.0","v0.17.0","v0.16.0","v0.15.0","v0.14.1","v0.14.0","v0.13.0-beta","v0.11.1","v0.11.0-beta","v0.10.2-beta","v0.10.1-beta","v0.10.0-beta","v0.8.1","v0.8.0-beta","v0.7.0-beta","v0.6.1","v0.6.0-beta","v0.5.5-beta","v0.5.4-beta","v0.5.3-beta","v0.5.2-beta","v0.5.1-beta","v0.5.0-beta","v0.4.1","v0.4.0-beta","v0.3.2","v0.3.1","v0.3.0","v0.2.2","v0.2.1","v0.2.0","v0.1.2","v0.1.1","v0.1.0","v0.0.11","v0.0.10","v0.0.9"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-45733.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:H/I:H/A:L"}]}