Movable Type provided by Six Apart Ltd. contains a code injection vulnerability in its Dynamic Publishing functionality. By sending a specially crafted request that is processed by the Dynamic Publishing, an attacker may be able to execute arbitrary PHP code on the affected product.

Attack Vector Network

Attack Complexity Low

Privileges Required None

Attack Requirements None

User Interaction None

Vulnerable System Confidentiality Impact Low

Vulnerable System Integrity Impact Low

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 Low

Integrity Impact Low

Availability Impact Low

User Interaction None

No CVSS v2

This CVE is not in the KEV list.

No EPSS score available.

Key SSVC decision points have not yet been added.

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions
Six Apart Ltd. Movable Type unaffected
Version Status Constraints
8.8.0 affected ≤ 8.8.6
Six Apart Ltd. Movable Type Advanced unaffected
Version Status Constraints
8.8.0 affected ≤ 8.8.6
Six Apart Ltd. Movable Type unaffected
Version Status Constraints
8.0.0 affected ≤ 8.0.13
Six Apart Ltd. Movable Type Advanced unaffected
Version Status Constraints
8.0.0 affected ≤ 8.0.13
Six Apart Ltd. Movable Type Premium unaffected
Version Status Constraints
2.00 affected ≤ 2.18
Six Apart Ltd. Movable Type Premium Advanced Edition unaffected
Version Status Constraints
2.00 affected ≤ 2.18

No data.

No data.

No data.

Project Subscriptions

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/JVN11786640/ cve-icon
https://movabletype.org/news/2026/11/mt-887-released.html cve-icon
https://www.sixapart.jp/movabletype/news/2026/11/11-1100.html cve-icon
History

Thu, 12 Nov 2026 03:30:00 +0000

Type Values Removed Values Added
Description Movable Type provided by Six Apart Ltd. contains a code injection vulnerability in its Dynamic Publishing functionality. By sending a specially crafted request that is processed by the Dynamic Publishing, an attacker may be able to execute arbitrary PHP code on the affected product.
Weaknesses CWE-94
References
Metrics cvssV3_0

{'score': 7.3, 'vector': 'CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L'}

cvssV4_0

{'score': 6.9, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N'}

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: jpcert

Published:

Updated: 2026-11-12T03:03:24.510Z

Reserved: 2026-11-06T06:33:18.178Z

Link: CVE-2026-117687

cve-icon Vulnrichment

No data.

cve-icon NVD

No data.

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses