CVE-2026-72780: Craft CMS CMS

Medium severity, CVSS 6.5. EPSS: 0.4% chance of exploitation in the next 30 days.

Craft CMS before 5.10.5 fails to persist updated credential counters after WebAuthn assertion validation in the passkey login endpoint. Attackers can replay captured login request bodies containing requestOptions and response to create additional authenticated sessions for victim accounts.

Affected products

• Craft CMS CMS: from 5.0.0-RC1, before 5.10.5 (fixed in 5.10.5)

Published 2026-08-11. Last modified 2026-10-08.