CVE-2021-3816: Cacti

Medium severity, CVSS 5.4. EPSS: 0.5% chance of exploitation in the next 30 days.

Cacti 1.1.38 allows authenticated users with User Management permissions to inject arbitrary HTML in the group_prefix field during the creation of a new group via "Copy" method at user_group_admin.php.

Affected products

• Cacti Cacti: version 1.1.38 only

Published 2022-01-19. Last modified 2026-06-17.