What’s Vulnerable › Vulnerabilities

CVE-2026-84801: Craft CMS 5.0.0-RC1 before 5.10.11 Authentication Bypass via administrateUsers

• Severity: high (CVSS 8.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.4% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-09-02 · updated 2026-09-02
• Weakness: CWE-862

Description

Craft CMS versions before 5.10.11 fail to validate admin status in the actionGetPasswordResetUrl endpoint, allowing non-admin users with administrateUsers permission to mint password reset URLs for administrator accounts. Attackers can generate a valid reset URL for any admin user and set a new password via actionSetPassword, which validates only the verification code without checking the caller's session, enabling complete control-panel takeover.

Affected products

• craftcms cms: from 5.0.0-RC1 before 5.10.11 — fixed in 5.10.11

How to fix

Upgrade to a fixed version: craftcms cms 5.10.11. Check the vendor advisory for mitigations.

References

• https://github.com/craftcms/cms/security/advisories/GHSA-6qw4-cjqw-fj72
• https://www.vulncheck.com/advisories/craft-cms-5.0.0-rc1-before-5.10.11-authentication-bypass-via-administrateusers

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