CVE-2026-25776

Name: CVE-2026-25776
Creator: NVD / NIST
Published: 2026-04-08T09:16:20.36+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

CRITICALCVSS 9.3/10EPSS 0.47%

Last modified Jun 17, 2026

CVE-2026-25776 is a critical-severity vulnerability rated 9.3/10 on the CVSS scale. Movable Type provided by Six Apart Ltd. contains a code injection vulnerability which may allow an attacker to execute arbitrary Perl script.. EPSS estimates a 0.47% chance of exploitation in the next 30 days.

Description

Movable Type provided by Six Apart Ltd. contains a code injection vulnerability which may allow an attacker to execute arbitrary Perl script.

Metrics

CVSS 4.0

9.3/10

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

CVSS 3.0

9.8/10

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS Probability

0.47%

37.1th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-94

Affected Software

Vendor	Product	Versions
Sixapart	Movable Type	<= 2.14
Sixapart	Movable Type	9.0.5
Sixapart	Movable Type	9.0.6
Sixapart	Movable Type	9.1.0
Sixapart	Movable Type	>= 8.0.2, < 8.0.10
Sixapart	Movable Type	>= 8.8.0, < 8.8.3
Sixapart	Movable Type	>= 9.0.1, < 9.0.7

References

https://jvn.jp/en/jp/JVN66473735/Third Party Advisory
https://movabletype.org/news/2026/04/mt-907-released.htmlVendor Advisory
https://www.sixapart.jp/movabletype/news/2026/04/08-1100.htmlVendor Advisory

Timeline

Published: Apr 8, 2026
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2026-25776?

Movable Type provided by Six Apart Ltd. contains a code injection vulnerability which may allow an attacker to execute arbitrary Perl script.

How severe is CVE-2026-25776?

CVE-2026-25776 has a CVSS score of 9.3/10 (CRITICAL severity). The EPSS model estimates a 0.47% probability of exploitation in the next 30 days.

How do I fix CVE-2026-25776?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2026-25776?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST