Skip to content
OpenAdvisories
Medium · 6.5 CVE-2026-72780 EUVD-2026-56104GHSA-jh4m-63fq-p9h9GHSA-wg23-69c2-gjc8

Craft CMS before 5.10.5 WebAuthn Assertion Replay via login-with-passkey

Published Aug 11, 2026 · Updated Oct 8, 2026 · Assigned by VulnCheck

Description

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

VendorProductAffectedFixed
craftcms cms 5.0.0-RC1 – < 5.10.5 5.10.5

Affected packages

EcosystemPackageAffectedFixedRecord
Packagist craftcms/cms >= 5.0.0-RC1, < 5.10.5 5.10.5 GHSA-wg23-69c2-gjc8

References