Replay Attack Affecting craftcms/cms package, versions >=5.0.0-RC1, <5.10.5


Severity

Recommended
0.0
critical
0
10

CVSS assessment by Snyk's Security Team. Learn more

Threat Intelligence

EPSS
0.23% (14th percentile)

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  • Snyk IDSNYK-PHP-CRAFTCMSCMS-18584422
  • published7 Aug 2026
  • disclosed7 Aug 2026
  • creditUnknown

Introduced: 7 Aug 2026

NewCVE-2026-72780  (opens in a new tab)
CWE-294  (opens in a new tab)

How to fix?

Upgrade craftcms/cms to version 5.10.5 or higher.

Overview

craftcms/cms is a content management system.

Affected versions of this package are vulnerable to Replay Attack through the users/login-with-passkey process. An attacker can gain unauthorized access to user accounts by replaying a previously captured passkey login request body, as the system accepts old authentication challenges and does not update the credential counter after successful validation.

CVSS Base Scores

version 4.0
version 3.1