SEPTEMBER 19, 2026
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Case File

CVE-2026-45733

HIGH · CVSS 8.3 EPSS 0.30% Public Exploit

Source: NVD + CISA KEV + EPSS · Published 2026-08-18 · Last synced 2026-09-17

CyberRota Analysis

AI-Generated

Trilium Notes versions prior to 0.103.0 are vulnerable due to improper handling of the #iconClass label, allowing attackers to inject and execute arbitrary OS commands through stored payloads when a user interacts with the application. This vulnerability poses a significant risk, as it can lead to remote code execution on the victim's system. Organizations using Trilium Notes should prioritize updating to version 0.103.0 to mitigate this high-severity security threat.

Public Exploit Signal

A public exploit, PoC, GitHub repository or Metasploit reference was detected for this CVE.

Note: these links are listed for security research and verification purposes only.

CVE
CVE-2026-45733
Severity
HIGH
CVSS
8.3
EPSS
0.30%

Original NVD Description

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.