CVE-2026-64665: CWE-287: Improper Authentication in statamic cms
Statamic CMS versions prior to 5.74.1 and 6.24.0 contain an improper authentication vulnerability when OAuth login is enabled with providers that do not guarantee verified email addresses. An unauthenticated attacker can exploit this by signing in as an existing user, including super admins, without knowing their password. The vulnerability arises because the application matches OAuth identities to user accounts solely by email address. This issue is fixed in versions 5.74.1 and 6.24.0.
AI Analysis
Technical Summary
CVE-2026-64665 is an improper authentication vulnerability (CWE-287) in Statamic CMS. When OAuth login is enabled with an OAuth provider that does not verify email addresses, the system matches OAuth identities to user accounts by email alone. This allows an unauthenticated attacker to log in as any existing user, potentially including super admins, without password knowledge. Exploitation requires explicit enabling of OAuth with such a provider. The vulnerability is resolved in Statamic CMS versions 5.74.1 and 6.24.0.
Potential Impact
Successful exploitation allows an unauthenticated attacker to bypass authentication and gain access to any user account, including those with super admin privileges. This leads to full confidentiality, integrity, and availability compromise of the affected system.
Mitigation Recommendations
Upgrade Statamic CMS to version 5.74.1 or later, or 6.24.0 or later, where this vulnerability is fixed. Until patched, avoid enabling OAuth login with providers that do not guarantee verified email addresses.
CVE-2026-64665: CWE-287: Improper Authentication in statamic cms
Description
Statamic CMS versions prior to 5.74.1 and 6.24.0 contain an improper authentication vulnerability when OAuth login is enabled with providers that do not guarantee verified email addresses. An unauthenticated attacker can exploit this by signing in as an existing user, including super admins, without knowing their password. The vulnerability arises because the application matches OAuth identities to user accounts solely by email address. This issue is fixed in versions 5.74.1 and 6.24.0.
CVSS v3.1
Score 8.1high
Affected software
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AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-64665 is an improper authentication vulnerability (CWE-287) in Statamic CMS. When OAuth login is enabled with an OAuth provider that does not verify email addresses, the system matches OAuth identities to user accounts by email alone. This allows an unauthenticated attacker to log in as any existing user, potentially including super admins, without password knowledge. Exploitation requires explicit enabling of OAuth with such a provider. The vulnerability is resolved in Statamic CMS versions 5.74.1 and 6.24.0.
Potential Impact
Successful exploitation allows an unauthenticated attacker to bypass authentication and gain access to any user account, including those with super admin privileges. This leads to full confidentiality, integrity, and availability compromise of the affected system.
Mitigation Recommendations
Upgrade Statamic CMS to version 5.74.1 or later, or 6.24.0 or later, where this vulnerability is fixed. Until patched, avoid enabling OAuth login with providers that do not guarantee verified email addresses.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- GitHub_M
- Date Reserved
- 2026-07-20T17:11:30.897Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a750707bf8831d5395f5adc
Added to database: 08/06/2026, 22:13:27 UTC
Last enriched: 08/06/2026, 22:56:12 UTC
Last updated: 08/06/2026, 23:24:52 UTC
Views: 3
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