Vulnerability DatabaseCVE-2026-33955
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CVE-2026-33955
March 27, 2026
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.
Affected Packages
https://github.com/streetwriters/notesnook.git (GITHUB):
Affected version(s) >=v1.3.5 <v3.3.11
Fix Suggestion:
Update to version v3.3.11
https://github.com/streetwriters/notesnook.git (GITHUB):
Affected version(s) >=v1.3.5 <v3.3.11
Fix Suggestion:
Update to version v3.3.11
https://github.com/streetwriters/notesnook.git (GITHUB):
Affected version(s) >=v1.3.5 <v3.3.11
Fix Suggestion:
Update to version v3.3.11
https://github.com/streetwriters/notesnook.git (GITHUB):
Affected version(s) >=v1.3.5 <v3.3.11
Fix Suggestion:
Update to version v3.3.11
https://github.com/streetwriters/notesnook.git (GITHUB):
Affected version(s) >=v1.3.5 <v3.3.11
Fix Suggestion:
Update to version v3.3.11
https://github.com/streetwriters/notesnook.git (GITHUB):
Affected version(s) >=v1.3.5 <v3.3.11
Fix Suggestion:
Update to version v3.3.11
Related Resources (1)
https://github.com/streetwriters/notesnook/security/advisories/GHSA-45g3-cv93-q59v
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CVSS v4
Base Score:
9.3
Attack Vector
LOCAL
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
NONE
User Interaction
PASSIVE
Vulnerable System Confidentiality
HIGH
Vulnerable System Integrity
HIGH
Vulnerable System Availability
HIGH
Subsequent System Confidentiality
HIGH
Subsequent System Integrity
HIGH
Subsequent System Availability
HIGH
CVSS v3
Base Score:
8.6
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
CHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Weakness Type (CWE)
Improper Control of Generation of Code ('Code Injection')
CWE-94
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
CWE-79
EPSS
Base Score:
0.06