CVE-2022-39840: Cotonti Siena

Medium severity, CVSS 4.8. EPSS: 0.5% chance of exploitation in the next 30 days.

Cotonti Siena 0.9.20 allows admins to conduct stored XSS attacks via a direct message (DM).

Affected products

• Cotonti Cotonti Siena: version 0.9.20 only

Published 2022-09-05. Last modified 2026-06-17.