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CVE-2026-24447

MEDIUM
4.8
CVSS Score
Published: February 4, 2026 at 07:04 AM UTC
Updated: June 17, 2026 at 10:23 AM UTC
4 products affected across 1 vendorMovable TypeMovable Type PremiumMovable Type Premium Advanced

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Severity
MEDIUM4.8
Exploit prediction
EPSS 0.3%
SSVC
No known exploit

Description

If a malformed data is input to the affected product, a CSV file downloaded from the affected product may contain such malformed data. When a victim user download and open such a CSV file, the embedded code may be executed in the user's environment. Note that Movable Type 7 series and 8.4 series, which are End-of-Life (EOL), are affected by the vulnerability as well.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (3)

Source: [email protected]
https://jvn.jp/en/jp/JVN45405689/
Source: [email protected]
https://movabletype.org/news/2026/02/mt-906-released.html
Source: [email protected]
https://www.sixapart.jp/movabletype/news/2026/02/04-1100.html

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

4.8MEDIUMjpcert
Vector?

Quick Info

StatusDEFERRED
CWE
CWE-1236

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