Description
Missing authorization vulnerability exists in Movable Type. Under certain conditions, when a user without administrator privileges signs in to the product, unintended update processing may be executed.
Published: 2026-05-20
Score: 5.3 Medium
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

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Remediation

No vendor fix or workaround currently provided.

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Tracking

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Advisories

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History

Wed, 20 May 2026 13:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Wed, 20 May 2026 11:45:00 +0000

Type Values Removed Values Added
First Time appeared Six Apart
Six Apart movable Type
Six Apart movable Type Advanced
Six Apart movable Type Premium
Six Apart movable Type Premium Advanced Edition
Vendors & Products Six Apart
Six Apart movable Type
Six Apart movable Type Advanced
Six Apart movable Type Premium
Six Apart movable Type Premium Advanced Edition

Wed, 20 May 2026 07:45:00 +0000

Type Values Removed Values Added
Title Missing Authorization Allows Unintended Updates in Movable Type

Wed, 20 May 2026 06:30:00 +0000

Type Values Removed Values Added
Description Missing authorization vulnerability exists in Movable Type. Under certain conditions, when a user without administrator privileges signs in to the product, unintended update processing may be executed.
Weaknesses CWE-862
References
Metrics cvssV3_0

{'score': 4.3, 'vector': 'CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N'}

cvssV4_0

{'score': 5.3, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N'}


Subscriptions

Six Apart Movable Type Movable Type Advanced Movable Type Premium Movable Type Premium Advanced Edition
cve-icon MITRE

Status: PUBLISHED

Assigner: jpcert

Published:

Updated: 2026-05-20T13:04:04.783Z

Reserved: 2026-05-18T05:54:22.563Z

Link: CVE-2026-44392

cve-icon Vulnrichment

Updated: 2026-05-20T13:03:58.713Z

cve-icon NVD

Status : Deferred

Published: 2026-05-20T07:16:15.317

Modified: 2026-06-17T10:50:35.127

Link: CVE-2026-44392

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-05-20T10:37:56Z

Weaknesses