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CVE-2026-31266

HIGH
Missing Authorization (CWE-862)
2026-05-27 cve@mitre.org
7.3
CVSS 3.1
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CVSS VectorNVD

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
Low
Integrity
Low
Availability
Low

Lifecycle Timeline

1
Analysis Generated
May 27, 2026 - 20:13 vuln.today

DescriptionNVD

Craft CMS 5.9.5 and earlier contains a Missing Authorization vulnerability in the migrate endpoint (/actions/app/migrate).

AnalysisAI

Unauthorized invocation of the database migration endpoint (/actions/app/migrate) in Craft CMS 5.9.5 and earlier lets remote, unauthenticated attackers reach functionality that should be gated behind administrative authorization. The flaw stems from a missing authorization check (CWE-862) rather than a credential bypass on the login flow, and publicly available exploit code exists, though it is not listed in CISA KEV. …

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RemediationAI

24 hours: Inventory all Craft CMS deployments; identify any running version 5.9.5 or earlier; immediately restrict network access to /actions/app/migrate via firewall or reverse proxy. 7 days: Deploy WAF rules to block requests to /actions/app/migrate; implement request signing or API authentication wrapper if possible. …

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CVE-2026-31266 vulnerability details – vuln.today

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