A code injection vulnerability exists in the upgrade script of Movable Type, which may allow an unauthenticated attacker to execute an arbitrary Perl script or an SQL query on the affected product.

Metrics

Attack Vector Network

Attack Complexity Low

Privileges Required None

Attack Requirements None

User Interaction None

Vulnerable System Confidentiality Impact High

Vulnerable System Integrity Impact High

Vulnerable System Availability Impact Low

Subsequent System Confidentiality Impact None

Subsequent System Integrity Impact None

Subsequent System Availability Impact None

No CVSS v3.1

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact High

Integrity Impact High

Availability Impact Low

User Interaction None

No CVSS v2

This CVE is not in the KEV list.

No EPSS score available.

Exploitation none

Automatable yes

Technical Impact total

Affected Vendors & Products

No data.

No data.

No data.

OpenCVE Enrichment is a feature of OpenCVE that uses AI to automatically link vendors and products to CVEs. Learn more on GitHub.

No data.

Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References
Link Providers
https://jvn.jp/en/jp/JVN91153973/ cve-icon cve-icon
https://movabletype.org/news/2026/10/mt-930-released.html cve-icon cve-icon
https://www.sixapart.jp/movabletype/news/2026/10/07-1100.html cve-icon cve-icon
History

Wed, 07 Oct 2026 19:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Wed, 07 Oct 2026 13:00:00 +0000

Type Values Removed Values Added
Title Unauthenticated Code Injection via Upgrade Script in Movable Type

Wed, 07 Oct 2026 10:30:00 +0000

Type Values Removed Values Added
Description A code injection vulnerability exists in the upgrade script of Movable Type, which may allow an unauthenticated attacker to execute an arbitrary Perl script or an SQL query on the affected product.
Weaknesses CWE-94
References
Metrics cvssV3_0

{'score': 9.4, 'vector': 'CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:L'}

cvssV4_0

{'score': 9.3, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:L/SC:N/SI:N/SA:N'}

Projects

Sign in to view the affected projects.

cve-icon MITRE

Status: PUBLISHED

Assigner: jpcert

Published:

Updated: 2026-10-07T17:47:24.024Z

Reserved: 2026-10-02T04:23:48.464Z

Link: CVE-2026-96408

cve-icon Vulnrichment

Updated: 2026-10-07T17:47:18.495Z

cve-icon NVD

Status : Awaiting Analysis

Published: 2026-10-07T11:17:20.620

Modified: 2026-10-07T18:17:32.210

Link: CVE-2026-96408

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-10-07T12:45:16Z

Weaknesses