CVE-2026-96408

Unauthenticated Code Injection via Upgrade Script in Movable Type

Published Oct 7, 2026 CVSS 4.0 · 9.3 Critical EPSS < 1% KEV · Not listed
Description
A code injection vulnerability exists in the upgrade script of Movable Type, which may allow an unauthenticated attacker to execute an arbitrary Perl script or an SQL query on the affected product.

Remediation

No solution or workaround provided in the CVE record

Tracking

Sign in to view the affected projects.

Advisories

No advisories available
History
Type Values Removed Values Added
First Time appeared Six Apart
Six Apart movable Type
Six Apart movable Type Cloud Edition
Six Apart movable Type Premium
Six Apart movable Type Premium Cloud Edition
Vendors & Products Six Apart
Six Apart movable Type
Six Apart movable Type Cloud Edition
Six Apart movable Type Premium
Six Apart movable Type Premium Cloud Edition
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Type Values Removed Values Added
Title Unauthenticated Code Injection via Upgrade Script in Movable Type
Type Values Removed Values Added
Description A code injection vulnerability exists in the upgrade script of Movable Type, which may allow an unauthenticated attacker to execute an arbitrary Perl script or an SQL query on the affected product.
Weaknesses CWE-94
References
Metrics cvssV3_0

{'score': 9.4, 'vector': 'CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:L'}

cvssV4_0

{'score': 9.3, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:L/SC:N/SI:N/SA:N'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
jpcert
Published
Updated
Oct 7, 2026, 5:47 PM
Reserved
Oct 2, 2026, 4:23 AM
Status
Awaiting Analysis
Published
Oct 7, 2026, 11:17 AM
Modified
Oct 7, 2026, 6:17 PM