CVE-2022-40277: Joplinapp Joplin

High severity, CVSS 7.8. EPSS: 0.5% chance of exploitation in the next 30 days.

Joplin version 2.8.8 allows an external attacker to execute arbitrary commands remotely on any client that opens a link in a malicious markdown file, via Joplin. This is possible because the application does not properly validate the schema/protocol of existing links in the markdown file before passing them to the 'shell.openExternal' function.

Affected products

• Joplinapp Joplin: version 2.8.8 only

Published 2022-09-30. Last modified 2026-06-17.