๐Ÿ” CVE Alert

CVE-2026-25776

CRITICAL 9.8
CVSS Score
9.8
EPSS Score
0.0%
EPSS Percentile
0th

Movable Type provided by Six Apart Ltd. contains a code injection vulnerability which may allow an attacker to execute arbitrary Perl script.

Vendor six apart ltd.
Product movable type
Published Apr 8, 2026
Last Updated Apr 8, 2026
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CVSS v3 Breakdown

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected Versions

Six Apart Ltd. / Movable Type
9.1.0 and earlier
Six Apart Ltd. / Movable Type
9.0.6 and earlier
Six Apart Ltd. / Movable Type
8.8.2 and earlier
Six Apart Ltd. / Movable Type
8.0.9 and earlier
Six Apart Ltd. / Movable Type Advanced
9.1.0 and earlier
Six Apart Ltd. / Movable Type Advanced
9.0.6 and earlier
Six Apart Ltd. / Movable Type Advanced
8.8.2 and earlier
Six Apart Ltd. / Movable Type Advanced
8.0.9 and earlier
Six Apart Ltd. / Movable Type Premium
9.1.0 and earlier
Six Apart Ltd. / Movable Type Premium
9.0.6 and earlier
Six Apart Ltd. / Movable Type Premium Advanced Edition
9.1.0 and earlier
Six Apart Ltd. / Movable Type Premium Advanced Edition
9.0.6 and earlier
Six Apart Ltd. / Movable Type Premium
2.14 and earlier
Six Apart Ltd. / Movable Type Premium Advanced Edition
2.14 and earlier
Six Apart Ltd. / Movable Type Premium (MT8-based)
2.14 and earlier
Six Apart Ltd. / Movable Type
5.1 to 5.18
Six Apart Ltd. / Movable Type
5.2 5.2.1 to 5.2.13
Six Apart Ltd. / Movable Type
6.0 6.0.1 to 6.8.8
Six Apart Ltd. / Movable Type
7 r.4207 to r.5510
Six Apart Ltd. / Movable Type
8.4.0 to 8.4.4
Six Apart Ltd. / Movable Type
1.0 to 1.68

References

NVD โ†— CVE.org โ†— EPSS Data โ†—
movabletype.org: https://movabletype.org/news/2026/04/mt-907-released.html sixapart.jp: https://www.sixapart.jp/movabletype/news/2026/04/08-1100.html jvn.jp: https://jvn.jp/en/jp/JVN66473735/