{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-45733", "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "state": "PUBLISHED", "assignerShortName": "GitHub_M", "dateReserved": "2026-05-13T05:51:48.667Z", "datePublished": "2026-08-18T15:13:16.946Z", "dateUpdated": "2026-08-18T15:33:41.704Z"}, "containers": {"cna": {"title": "Trilium: Stored XSS in note icon rendering leads to Remote Code Execution in Electron desktop app", "problemTypes": [{"descriptions": [{"cweId": "CWE-79", "lang": "en", "description": "CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')", "type": "CWE"}]}, {"descriptions": [{"cweId": "CWE-83", "lang": "en", "description": "CWE-83: Improper Neutralization of Script in Attributes in a Web Page", "type": "CWE"}]}, {"descriptions": [{"cweId": "CWE-693", "lang": "en", "description": "CWE-693: Protection Mechanism Failure", "type": "CWE"}]}], "metrics": [{"cvssV3_1": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "LOW", "baseScore": 8.3, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "HIGH", "scope": "CHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:H/I:H/A:L", "version": "3.1"}}], "references": [{"name": "https://github.com/TriliumNext/Trilium/security/advisories/GHSA-h45q-4qc4-8hhg", "tags": ["x_refsource_CONFIRM"], "url": "https://github.com/TriliumNext/Trilium/security/advisories/GHSA-h45q-4qc4-8hhg"}, {"name": "https://github.com/TriliumNext/Trilium/commit/c06939448bcc2879fc3c4d328ff7dc63ed6b5009", "tags": ["x_refsource_MISC"], "url": "https://github.com/TriliumNext/Trilium/commit/c06939448bcc2879fc3c4d328ff7dc63ed6b5009"}, {"name": "https://github.com/TriliumNext/Trilium/releases/tag/v0.103.0", "tags": ["x_refsource_MISC"], "url": "https://github.com/TriliumNext/Trilium/releases/tag/v0.103.0"}], "affected": [{"vendor": "TriliumNext", "product": "Trilium", "versions": [{"version": "< 0.103.0", "status": "affected"}]}], "providerMetadata": {"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "shortName": "GitHub_M", "dateUpdated": "2026-08-18T15:13:16.946Z"}, "descriptions": [{"lang": "en", "value": "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."}], "source": {"advisory": "GHSA-h45q-4qc4-8hhg", "discovery": "UNKNOWN"}}, "adp": [{"references": [{"url": "https://github.com/TriliumNext/Trilium/security/advisories/GHSA-h45q-4qc4-8hhg", "tags": ["exploit"]}], "metrics": [{"other": {"type": "ssvc", "content": {"timestamp": "2026-08-18T15:32:57.681431Z", "id": "CVE-2026-45733", "options": [{"Exploitation": "poc"}, {"Automatable": "no"}, {"Technical Impact": "total"}], "role": "CISA Coordinator", "version": "2.0.3"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-08-18T15:33:41.704Z"}}]}}

{}

{"affected": [{"affectedData": [{"product": "Trilium", "vendor": "TriliumNext", "versions": [{"status": "affected", "version": "< 0.103.0"}]}], "source": "security-advisories@github.com"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "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."}], "id": "CVE-2026-45733", "lastModified": "2026-08-18T15:16:54.270", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "LOW", "baseScore": 8.3, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "HIGH", "scope": "CHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:H/I:H/A:L", "version": "3.1"}, "exploitabilityScore": 1.7, "impactScore": 6.0, "source": "security-advisories@github.com", "type": "Secondary"}]}, "published": "2026-08-18T15:16:54.270", "references": [{"source": "security-advisories@github.com", "url": "https://github.com/TriliumNext/Trilium/commit/c06939448bcc2879fc3c4d328ff7dc63ed6b5009"}, {"source": "security-advisories@github.com", "url": "https://github.com/TriliumNext/Trilium/releases/tag/v0.103.0"}, {"source": "security-advisories@github.com", "url": "https://github.com/TriliumNext/Trilium/security/advisories/GHSA-h45q-4qc4-8hhg"}], "sourceIdentifier": "security-advisories@github.com", "vulnStatus": "Received", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-79"}, {"lang": "en", "value": "CWE-83"}, {"lang": "en", "value": "CWE-693"}], "source": "security-advisories@github.com", "type": "Primary"}]}

{}

{}