CVE-2021-40214: Gibbonedu Gibbon

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

Gibbon v22.0.00 suffers from a stored XSS vulnerability within the wall messages component.

Affected products

• Gibbonedu Gibbon: version 22.0.00 only

Published 2021-09-13. Last modified 2026-06-17.