CVE-2021-27559: Monicahq Monica

Medium severity, CVSS 5.4. EPSS: 0.6% chance of exploitation in the next 30 days.

The Contact page in Monica 2.19.1 allows stored XSS via the Nickname field.

Affected products

• Monicahq Monica: version 2.19.1 only

Published 2021-02-22. Last modified 2026-06-17.