Authentication Bypass in Craft CMS by Craft
CVE-2026-84795

9.2CRITICAL

Key Information:

Vendor

Craftcms

Status
Vendor
CVE Published:
2 September 2026

What is CVE-2026-84795?

Craft CMS prior to version 5.10.11 is susceptible to an authentication bypass vulnerability due to inadequate validation of the admin flag during user registration. This flaw allows malicious users to register accounts using the email addresses of deactivated admin accounts. If public registration is enabled and email verification is disabled, attackers can effectively obtain administrative privileges, posing significant security risks to the affected installations.

Affected Version(s)

cms 5.0.0-RC1 < 5.10.11

cms 5.10.11

References

CVSS V4

Score:
9.2
Severity:
CRITICAL
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
Physical
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.