PT-2026-6193 · Six Apart · Movable Type

Published 2026-02-04 · Updated 2026-02-04 · CVE-2026-24447

Positive Technologies (AI Summary)

CVSS v3.1

6.5

Medium

Base vector

AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:L

Name of the Vulnerable Software and Affected Versions Movable Type versions 7.x and 8.4.x

Description A flaw exists where specially crafted input data can lead to the creation of a malicious CSV file. Downloading and opening this file can result in code execution within the user's system. The issue affects Movable Type 7 series and 8.4 series, which are End-of-Life (EOL).

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

RCE

Weakness Enumeration

CWE-1236

Related Identifiers

CVE-2026-24447

Affected Products

Movable Type

References · 5

• https://nvd.nist.gov/vuln/detail/CVE-2026-24447 · Security Note
• https://t.me/CVEtracker/43695 · Telegram Post
• https://jvn.jp/en/jp/JVN45405689 · Note
• https://movabletype.org/news/2026/02/mt-906-released.html · Note
• https://sixapart.jp/movabletype/news/2026/02/04-1100.html · Note