EUVD-2026-60956Severity by source
AV:N/AC:L/PR:H/UI:R/S:C/C:H/I:H/A:L
PR:L because standard note-writers can set #iconClass; A:H because Electron nodeIntegration enables full OS command execution, including availability-impacting actions.
Primary rating from Vendor (github).
CVSS VectorVendor: github
Lifecycle Timeline
4DescriptionCVE.org
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.
AnalysisAI
Stored XSS in Trilium Notes via the #iconClass note label escalates to full operating-system code execution due to the Electron runtime's enabled nodeIntegration and disabled contextIsolation. An attacker with note-write access (CVSS PR:H) can set a crafted #iconClass attribute value that auto-executes when any victim opens a new tab or invokes quick search (Ctrl+J), granting arbitrary OS command execution as the victim user. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | The attacker must have sufficient access to create or edit a Trilium note and set a custom #iconClass label attribute - in collaborative or server deployments this may be any authenticated note-writer (functionally PR:L), while in single-user personal deployments it requires prior file-system or database access. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The vendor-assigned CVSS 8.3 (AV:N/AC:L/PR:H/UI:R/S:C/C:H/I:H/A:L) reflects the Scope:Changed consequence of Electron nodeIntegration - what would otherwise be a contained XSS becomes OS-level code execution. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | Full exploit scenario with step-by-step reproduction available after sign-in. |
| Remediation | Upgrade to Trilium Notes v0.103.0 or later, confirmed available at https://github.com/TriliumNext/Trilium/releases/tag/v0.103.0. … Detailed patch versions, workarounds, and compensating controls in full report. |
Recommended ActionAI
Within 24 hours, audit which systems run Trilium Notes and determine if note-write access extends to untrusted parties. …
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Same weakness CWE-79 – Cross-site Scripting (XSS)
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External POC / Exploit Code
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