Critical 9.3Published Apr 8, 2026

CVE-2026-25776Movable Type provided by Six Apart Ltd.

Updated under an hour ago (Oct 27, 2026, 9:00 AM ET)

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It affects Six Apart Ltd. Movable Type and 5 other products. Add what you run to find out whether that includes you.

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Every CVE for Six Apart Ltd. Movable Type

Exploited in the last 30 days

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

CVSS: 9.3 CRITICAL (v4.0, CNA)CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
Weakness (CWE): CWE-94
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: jpcert
NVD analysis: Analyzed
Record last updated: Apr 8, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

Six Apart Ltd. Movable Type six_apart:movable_type (from the name)	9.1.0 and earlier	CNA record
Six Apart Ltd. Movable Type Advanced six_apart:movable_type_advanced (from the name)	9.1.0 and earlier	CNA record
Six Apart Ltd. Movable Type Premium six_apart:movable_type_premium (from the name)	9.1.0 and earlier	CNA record
Six Apart Ltd. Movable Type Premium Advanced Edition six_apart:movable_type_premium_advanced_edition (from the name)	9.1.0 and earlier	CNA record
Six Apart Ltd. Movable Type Premium (MT8-based) six_apart:movable_type_premium_mt8_based (from the name)	2.14 and earlier	CNA record
sixapart movable_type sixapart:movable_type	through 2.14; 9.0.5; 9.0.6; 9.1.0; from 8.0.2 before 8.0.10; from 8.8.0 before 8.8.3; from 9.0.1 before 9.0.7; 9.1.0	NVD

References

References

https://movabletype.org/news/2026/04/mt-907-released.html	vendor-advisory
https://www.sixapart.jp/movabletype/news/2026/04/08-1100.html	vendor-advisory
https://jvn.jp/en/jp/JVN66473735/	third-party-advisory

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.