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CVE-2026-44392

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 execu...

Published: May 20, 2026Updated: May 20, 2026 Sources: CVE List NVD
NVD MITRE
4.3CVSS
MEDIUM

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.

EPSS Score
0.0%
Top 92.3%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
No Fix Available

CVSS Vector Breakdown

AV:NAC:LPR:LUI:NS:UC:NI:LA:N
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:LPrivileges Required
Low
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:NConfidentiality
None
I:LIntegrity
Low
A:NAvailability
None

Weaknesses

CWE-862

Affected Products

Movable Type
Six Apart Ltd.
Movable Type Advanced
Six Apart Ltd.
Movable Type Premium
Six Apart Ltd.
Movable Type Premium (Advanced Edition)
Six Apart Ltd.

Attack Graph

Products CVE Techniques Tactics

Click technique nodes to view MITRE ATT&CK details. Scroll to zoom, drag to pan.

Exploitability

No known exploits, KEV entries, or remediation guidance available for this vulnerability yet.

MITRE ATT&CK

2 techniques
Initial Access
View detailed technique mapping

References

https://jvn.jp/en/jp/JVN66473735/
jvn.jp
https://movabletype.org/news/2026/05/mt-908-released.html
movabletype.org
https://www.sixapart.jp/movabletype/news/2026/05/20-1100.html
sixapart.jp

Timeline

Published
May 20, 2026
Last Updated
May 20, 2026

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