Description

Notesnook is a note-taking app. Prior to version 3.3.11 on Web/Desktop, a cross-site scripting vulnerability stored in the note history comparison viewer can escalate to remote code execution in a desktop application. The issue is triggered when an attacker-controlled note header is displayed using `dangerouslySetInnerHTML` without secure handling. When combined with the full backup and restore feature in the desktop application, this becomes remote code execution because Electron is configured with `nodeIntegration: true` and `contextIsolation: false`. Version 3.3.11 patches the issue.

INFO

Published Date :

2026-03-27T21:27:31.554Z

Last Modified :

2026-03-27T21:27:31.554Z

Source :

GitHub_M
AFFECTED PRODUCTS

The following products are affected by CVE-2026-33955 vulnerability.

No data.

REFERENCES

Here, you will find a curated list of external links that provide in-depth information to CVE-2026-33955.

CVSS Vulnerability Scoring System

Detailed values of each vector for above chart.
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Privileges Required
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Scope
Confidentiality Impact
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Availability Impact