CVE-2025-43954: Quasar Qmarkdown

Medium severity, CVSS 6.1. EPSS: 0.2% chance of exploitation in the next 30 days.

QMarkdown (aka quasar-ui-qmarkdown) before 2.0.5 allows XSS via headers even when when no-html is set.

Affected products

• Quasar Qmarkdown: before 2.0.5 (fixed in 2.0.5)

Published 2025-04-20. Last modified 2026-06-17.