Movable Type

Missing authorization in Movable Type allows authenticated non-administrator users to trigger unintended update operations under certain conditions. Affecting Movable Type, Movable Type Advanced, and Movable Type Premium products by Six Apart Ltd., the flaw (CWE-862) permits a low-privileged user to bypass access controls and perform write operations that should be restricted to administrators. No public exploit or CISA KEV listing exists at time of analysis; the vendor released a fix in version 9.0.8 on 2026-05-20 per the Six Apart advisory.

SQL injection in Movable Type allows unauthenticated remote attackers to execute arbitrary SQL statements through unvalidated input, potentially enabling unauthorized data access, modification, or deletion. The vulnerability affects Movable Type versions prior to 9.07 with a CVSS score of 6.9 (medium-high severity); exploitation requires only network access and no user interaction, making it broadly exploitable despite limited scope of confidentiality and integrity impact.

Code injection in Movable Type CMS allows unauthenticated remote attackers to execute arbitrary Perl code with critical impact. The CVSS:4.0 score of 9.3 reflects network-accessible exploitation requiring no privileges or user interaction (AV:N/AC:L/PR:N/UI:N), enabling complete system compromise. No public exploit identified at time of analysis, though EPSS data unavailable. Vendor Six Apart has released patched version MT 9.0.7 addressing this CWE-94 code injection flaw.

Cross-site scripting vulnerability in Movable Type series allows a remote authenticated attacker to inject an arbitrary script. Rated medium severity (CVSS 5.4), this vulnerability is remotely exploitable, low attack complexity. No vendor patch available.

Cross-site scripting vulnerability in Movable Type Movable Type 7 r.5301 and earlier (Movable Type 7 Series), Movable Type Advanced 7 r.5301 and earlier (Movable Type Advanced 7 Series), Movable Type. Rated medium severity (CVSS 6.1), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.

Improper validation of syntactic correctness of input vulnerability exist in Movable Type series. Rated medium severity (CVSS 6.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.

Improper neutralization of Server-Side Includes (SSW) within a web page in Movable Type series allows a remote authenticated attacker with Privilege of 'Manage of Content Types' may execute an. Rated high severity (CVSS 7.2), this vulnerability is remotely exploitable, low attack complexity. No vendor patch available.

Movable Type XMLRPC API provided by Six Apart Ltd. Rated critical severity (CVSS 9.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.

Movable Type 7 r.5002 and earlier (Movable Type 7 Series), Movable Type 6.8.2 and earlier (Movable Type 6 Series), Movable Type Advanced 7 r.5002 and earlier (Movable Type Advanced 7 Series), Movable. Rated critical severity (CVSS 9.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available and no vendor patch available.

Cross-site scripting vulnerability in Edit Boilerplate screen of Movable Type (Movable Type 7 r.4903 and earlier (Movable Type 7 Series), Movable Type 6.8.0 and earlier (Movable Type 6 Series),. Rated medium severity (CVSS 6.1), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.

Cross-site scripting vulnerability in Setting screen of ContentType Information Widget Plugin of Movable Type (Movable Type 7 r.4903 and earlier (Movable Type 7 Series), Movable Type Advanced 7. Rated medium severity (CVSS 6.1), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.

Cross-site scripting vulnerability in Edit screen of Content Data of Movable Type (Movable Type 7 r.4903 and earlier (Movable Type 7 Series) and Movable Type Advanced 7 r.4903 and earlier (Movable. Rated medium severity (CVSS 6.1), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.

Cross-site scripting vulnerability in Setting screen of Server Sync of Movable Type (Movable Type Advanced 7 r.4903 and earlier (Movable Type Advanced 7 Series) and Movable Type Premium Advanced 1.44. Rated medium severity (CVSS 6.1), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.

Cross-site scripting vulnerability in List of Assets screen of Movable Type (Movable Type 7 r.4903 and earlier (Movable Type 7 Series), Movable Type 6.8.0 and earlier (Movable Type 6 Series), Movable. Rated medium severity (CVSS 6.1), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.

Cross-site scripting vulnerability in Website Management screen of Movable Type (Movable Type 7 r.4903 and earlier (Movable Type 7 Series), Movable Type 6.8.0 and earlier (Movable Type 6 Series),. Rated medium severity (CVSS 6.1), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.

Cross-site scripting vulnerability in Create screens of Entry, Page, and Content Type of Movable Type (Movable Type 7 r.4903 and earlier (Movable Type 7 Series), Movable Type 6.8.0 and earlier. Rated medium severity (CVSS 6.1), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.

Cross-site scripting vulnerability in Search screen of Movable Type (Movable Type 7 r.4903 and earlier (Movable Type 7 Series), Movable Type 6.8.0 and earlier (Movable Type 6 Series), Movable Type. Rated medium severity (CVSS 6.1), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.

Cross-site scripting vulnerability in in Add asset screen of Contents field of Movable Type 7 r.4705 and earlier (Movable Type 7 Series), Movable Type Advanced 7 r.4705 and earlier (Movable Type. Rated medium severity (CVSS 6.1), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.

Cross-site scripting vulnerability in in Asset registration screen of Movable Type 7 r.4705 and earlier (Movable Type 7 Series), Movable Type Advanced 7 r.4705 and earlier (Movable Type Advanced 7. Rated medium severity (CVSS 6.1), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.

Cross-site scripting vulnerability in in Role authority setting screen of Movable Type 7 r.4705 and earlier (Movable Type 7 Series), Movable Type Advanced 7 r.4705 and earlier (Movable Type Advanced. Rated medium severity (CVSS 6.1), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.

Movable Type series (Movable Type 7 r.4606 (7.2.1) and earlier (Movable Type 7), Movable Type Advanced 7 r.4606 (7.2.1) and earlier (Movable Type Advanced 7), Movable Type for AWS 7 r.4606 (7.2.1). Rated high severity (CVSS 8.8), this vulnerability is remotely exploitable, low attack complexity. No vendor patch available.

Cross-site request forgery (CSRF) vulnerability in Movable Type series (Movable Type 7 r.4606 (7.2.1) and earlier (Movable Type 7), Movable Type Advanced 7 r.4606 (7.2.1) and earlier (Movable Type. Rated high severity (CVSS 8.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.

Cross-site scripting vulnerability in Movable Type series (Movable Type 7 r.4606 (7.2.1) and earlier (Movable Type 7), Movable Type Advanced 7 r.4606 (7.2.1) and earlier (Movable Type Advanced 7),. Rated medium severity (CVSS 6.1), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.

HTML attribute value injection vulnerability in Movable Type series (Movable Type 7 r.4606 (7.2.1) and earlier (Movable Type 7), Movable Type Advanced 7 r.4606 (7.2.1) and earlier (Movable Type. Rated medium severity (CVSS 5.3), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.

Cross-site scripting vulnerability in Movable Type series (Movable Type 7 r.4603 and earlier (Movable Type 7), Movable Type 6.5.2 and earlier (Movable Type 6.5), Movable Type Advanced 7 r.4603 and. Rated medium severity (CVSS 6.1), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.

Open redirect vulnerability in Movable Type series Movable Type 7 r.4602 (7.1.3) and earlier (Movable Type 7), Movable Type 6.5.0 and 6.5.1 (Movable Type 6.5), Movable Type 6.3.9 and earlier (Movable. Rated medium severity (CVSS 6.1), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.

Cross-site scripting vulnerability in Movable Type versions prior to Ver. Rated medium severity (CVSS 6.1), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.

SQL injection vulnerability in the XML-RPC interface in Movable Type Pro and Advanced 6.x before 6.1.3 and 6.2.x before 6.2.6 and Movable Type Open Source 5.2.13 and earlier allows remote attackers. Rated critical severity (CVSS 9.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.

Movable Type before 5.2.6 does not properly use the Storable::thaw function, which allows remote attackers to execute arbitrary code via the comment_state parameter. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, low attack complexity. No vendor patch available.

Movable Type Pro, Open Source, and Advanced before 5.2.12 and Pro and Advanced 6.0.x before 6.0.7 does not properly use the Perl Storable::thaw function, which allows remote attackers to include and. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, low attack complexity. Public exploit code available and EPSS exploitation probability 81.0%.

SQL injection vulnerability in the XML-RPC interface in Movable Type before 5.18, 5.2.x before 5.2.11, and 6.x before 6.0.6 allows remote attackers to execute arbitrary SQL commands via unspecified. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, low attack complexity. No vendor patch available.

Cross-site scripting (XSS) vulnerability in Six Apart (formerly Six Apart KK) Movable Type (MT) Pro 5.13 allows remote attackers to inject arbitrary web script or HTML via the comment section. Rated medium severity (CVSS 4.3), this vulnerability is remotely exploitable. Public exploit code available and no vendor patch available.

lib/MT/Upgrade.pm in mt-upgrade.cgi in Movable Type 4.2x and 4.3x through 4.38 does not require authentication for requests to database-migration functions, which allows remote attackers to conduct. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, low attack complexity. Public exploit code available and EPSS exploitation probability 80.6%.

Movable Type before 4.38, 5.0x before 5.07, and 5.1x before 5.13 allows remote attackers to take control of sessions via unspecified vectors related to the (1) commenting feature and (2) community. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, low attack complexity.

Multiple cross-site request forgery (CSRF) vulnerabilities in Movable Type before 4.38, 5.0x before 5.07, and 5.1x before 5.13 allow remote attackers to hijack the authentication of arbitrary users. Rated medium severity (CVSS 6.8), this vulnerability is remotely exploitable.