CVE-2026-44392
4.3
CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
Summary
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.
Affected Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Six Apart Ltd. | Movable Type | 9.1.1 and earlier | affected |
| Six Apart Ltd. | Movable Type | 9.0.7 and earlier | affected |
| Six Apart Ltd. | Movable Type | 8.8.3 and earlier | affected |
| Six Apart Ltd. | Movable Type | 8.0.10 and earlier | affected |
| Six Apart Ltd. | Movable Type Advanced | 9.1.1 and earlie | affected |
| Six Apart Ltd. | Movable Type Advanced | 9.0.7 and earlier | affected |
| Six Apart Ltd. | Movable Type Advanced | 8.8.3 and earlier | affected |
| Six Apart Ltd. | Movable Type Advanced | 8.0.10 and earlier | affected |
| Six Apart Ltd. | Movable Type Premium | 9.1.1 and earlier | affected |
| Six Apart Ltd. | Movable Type Premium | 9.0.7 and earlier | affected |
| Six Apart Ltd. | Movable Type Premium | 2.15 and earlier (included in Movable Type 8.8.4 and earlier or Movable Type 8.0.11 and earlier) | affected |
| Six Apart Ltd. | Movable Type Premium (Advanced Edition) | 9.1.1 and earlier | affected |
| Six Apart Ltd. | Movable Type Premium (Advanced Edition) | 9.0.7 and earlier | affected |
| Six Apart Ltd. | Movable Type Premium (Advanced Edition) | 2.15 and earlier (included in Movable Type 8.8.4 and earlier or Movable Type 8.0.11 and earlier) | affected |
Weaknesses
- CWE-862: Missing authorization
ADP Enrichment
CISA ADP Vulnrichment
- SSVC:
- Exploitation: none
- Automatable: no
- Technical Impact: partial
References
- https://movabletype.org/news/2026/05/mt-908-released.html
- https://www.sixapart.jp/movabletype/news/2026/05/20-1100.html
- https://jvn.jp/en/jp/JVN66473735/
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