CVE-2026-96408: Code injection in Six Apart Ltd. Movable Type Cloud Edition
Description
CVE-2026-96408 is a critical code injection vulnerability in the upgrade script of Six Apart Ltd.'s Movable Type Cloud Edition. It allows an unauthenticated attacker to execute arbitrary Perl scripts or SQL queries on affected versions. The vulnerability affects multiple versions ranging from 2.0 up to 9.2.1. The CVSS 3.0 score is 9.4, indicating a high impact on confidentiality, integrity, and a low impact on availability. No known exploits are reported in the wild. The product is not a cloud service, and no patch information is provided in the input data.
CVSS v3.0
Score 9.4critical
Affected software
Six Apart Ltd.
Movable Type Cloud Edition
Six Apart Ltd.
Movable Type
Six Apart Ltd.
Movable Type Premium Cloud Edition
Six Apart Ltd.
Movable Type Premium
pkg:github/sixapart/movable-type-cloud-editionRun on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability in Movable Type Cloud Edition's upgrade script permits unauthenticated code injection, enabling execution of arbitrary Perl code or SQL queries. It affects versions >=2.0 <=2.17, >=8.0.0 <=8.0.12, >=8.8.0 <=8.8.5, >=9.0.0 <=9.0.9, and >=9.2.0 <=9.2.1. The CVSS 3.0 vector (AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:L) reflects network attack vector, low attack complexity, no privileges or user interaction required, and high confidentiality and integrity impact with low availability impact. This vulnerability could lead to full compromise of the affected system through arbitrary code execution.
Potential Impact
Successful exploitation allows an unauthenticated attacker to execute arbitrary Perl scripts or SQL queries, potentially leading to full system compromise, data theft, or data manipulation. The high CVSS score of 9.4 reflects the critical nature of this vulnerability with significant confidentiality and integrity impacts.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Since no patch or official fix information is provided, users should monitor the vendor's security advisories for updates. Until a fix is available, restrict access to the upgrade script and consider additional protective controls to limit exposure.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- jpcert
- Date Reserved
- 2026-10-02T04:23:48.464Z
- Cvss Version
- 3.0
- State
- PUBLISHED
Threat ID: 6ac620182cdf04f6563a9f9e
Added to database: 10/07/2026, 10:34:00 UTC
Last enriched: 10/07/2026, 10:48:15 UTC
Last updated: 10/07/2026, 10:49:09 UTC
Views: 9
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