CVE-2024-49362: Joplin Project Joplin

Critical severity, CVSS 9.6. EPSS: 1% chance of exploitation in the next 30 days.

Joplin is a free, open source note taking and to-do application. Joplin-desktop has a vulnerability that leads to remote code execution (RCE) when a user clicks on an <a> link within untrusted notes. The issue arises due to insufficient sanitization of <a> tag attributes introduced by the Mermaid. This vulnerability allows the execution of untrusted HTML content within the Electron window, which has full access to Node.js APIs, enabling arbitrary shell command execution.

Affected products

• Joplin Project Joplin: before 3.1 (fixed in 3.1)

Published 2024-11-14. Last modified 2026-06-17.