PT-2026-31107 · Six Apart · Movable Type

Published 2026-04-08 · Updated 2026-04-12 · CVE-2026-25776

Positive Technologies (AI Summary)

CVSS v3.1

9.8

Critical

Base vector

AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Name of the Vulnerable Software and Affected Versions Movable Type (affected versions not specified)

Description Movable Type contains a code injection vulnerability that could allow an attacker to execute arbitrary Perl script. This could lead to webshell access.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Code Injection

Weakness Enumeration

CWE-94

Related Identifiers

CVE-2026-25776

Affected Products

Movable Type

References · 10

• https://nvd.nist.gov/vuln/detail/CVE-2026-25776 · Security Note
• https://sixapart.jp/movabletype/news/2026/04/08-1100.html · Vendor Advisory
• https://movabletype.org/news/2026/04/mt-907-released.html · Vendor Advisory
• https://jvn.jp/en/jp/JVN66473735 · Note
• https://t.me/cveNotify/158434 · Telegram Post
• https://twitter.com/CVEnew/status/2043295679414480932 · Twitter Post
• https://twitter.com/0dayPublishing/status/2041805627794534908 · Twitter Post
• https://twitter.com/ctiwatchcloud/status/2042210932495929764 · Twitter Post
• https://twitter.com/CveFindCom/status/2041814059381645344 · Twitter Post
• https://twitter.com/syedaquib77/status/2041752246552052115 · Twitter Post