Privilege escalation in Craftcms Cms
CVE-2026-84795
Craft CMS before 5.10.11 fails to validate the admin flag during user registration, allowing it to persist from deactivated admin accounts. Attackers can register with a deactivated admin's email address to inherit administrator privileges when public registration and disabled email verification are configured.
Vulnerability class: Privilege Escalation
CVSS v3 metric
CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
Affected products
Weakness classification (CWE)
References
- disclosure@vulncheck.com (vendor-advisory)
- disclosure@vulncheck.com (third-party-advisory)
Frequently asked questions
- What is CVE-2026-84795?
- CVE-2026-84795 is a critical-severity vulnerability in Craftcms Cms, classified under Improper Privilege Management. CVSS score: 9.8/10. Published 2026-09-02.
- How severe is CVE-2026-84795?
- Critical severity. CVSS v3 base score is 9.8 out of 10.