CVE-2026-25776

EUVD-2026-20132
Movable Type provided by Six Apart Ltd. contains a code injection vulnerability which may allow an attacker to execute arbitrary Perl script.
Code Injection
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
9.8 CRITICAL
NETWORK
LOW
NONE
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Base Score
CVSS 3.x
EPSS Score
Percentile: 20%
Affected Products (NVD)
VendorProductVersion
sixapartmovable_type
𝑥
≤ 2.14
sixapartmovable_type
9.0.5
sixapartmovable_type
9.0.6
sixapartmovable_type
9.1.0
sixapartmovable_type
8.0.2 ≤
𝑥
< 8.0.10
sixapartmovable_type
8.8.0 ≤
𝑥
< 8.8.3
sixapartmovable_type
9.0.1 ≤
𝑥
< 9.0.7
sixapartmovable_type
9.1.0
𝑥
= Vulnerable software versions
Common Weakness Enumeration
References
https://jvn.jp/en/jp/JVN66473735/
https://movabletype.org/news/2026/04/mt-907-released.html
https://www.sixapart.jp/movabletype/news/2026/04/08-1100.html