CVE-2026-96408Network attack vectorHinoki check available

Unauthenticated Perl and SQL execution via upgrade script

Published Oct 7, 2026 · Updated Oct 7, 2026

Code injection in Six Apart Movable Type and Movable Type Premium allows remote attackers to execute Perl code or SQL queries via mt-upgrade.cgi. The upgrade script accepts attacker-controlled requests, but the vendor has not disclosed the precise input or faulty operation that enables injection. Exploitation requires network access to the upgrade script; both self-hosted and Cloud Editions are affected, and execution is limited by the application's privileges.

CVSS severity9.3
Critical
EPSS probability0.64%
Next 30 days · Oct 19, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkAvailable
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Summary

What happened

Code injection in Six Apart Movable Type and Movable Type Premium allows remote attackers to execute Perl code or SQL queries via mt-upgrade.cgi. The upgrade script accepts attacker-controlled requests, but the vendor has not disclosed the precise input or faulty operation that enables injection. Exploitation requires network access to the upgrade script; both self-hosted and Cloud Editions are affected, and execution is limited by the application's privileges.

The record

CVE
CVE-2026-96408
Published
Oct 7, 2026
Updated
Oct 7, 2026
Vendor
Six Apart Ltd.
Product
Movable Type Premium (Cloud Edition)
Classifications
CWE-94, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Oct 7, 2026CVE publishedPublication date reported by the CVE source.
  2. Oct 7, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=9.2.0 <=9.2.1

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Six Apart Ltd. · Movable Type Premium (Cloud Edition)version=9.2.0 <=9.2.1
Six Apart Ltd. · Movable Type Premiumversion=2.0 <=2.17; version=9.0.0 <=9.0.9
Six Apart Ltd. · Movable Typeversion=8.0.0 <=8.0.12; version=8.8.0 <=8.8.5; version=9.0.0 <=9.0.9
Six Apart Ltd. · Movable Type (Cloud Edition)version=9.2.0 <=9.2.1

Published CVSS scores

9.4JVNCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:L
9.3JVNCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:L/SC:N/SI:N/SA:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Activity data is delayed. The latest report is Sep 28, 2026.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 22, 2026Sep 28, 2026
Latest reporting daySep 28, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-94Improper Control of Generation of Code ('Code Injection')
T1190Exploit Public-Facing Application

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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