CVE-2019-12184: Boostio Boostnote

Medium severity, CVSS 5.4. EPSS: 0.7% chance of exploitation in the next 30 days.

There is XSS in browser/components/MarkdownPreview.js in BoostIO Boostnote 0.11.15 via a label named flowchart, sequence, gallery, or chart, as demonstrated by a crafted SRC attribute of an IFRAME element, a different vulnerability than CVE-2019-12136.

Affected products

• Boostio Boostnote: version 0.11.15 only

Published 2019-05-19. Last modified 2026-06-17.