Is CVE-2026-25776 actively exploited?

CVE-2026-25776 has no public evidence of in-the-wild exploitation as of 2026-04-20.

What is the CVSS score for CVE-2026-25776?

CVE-2026-25776 has a CVSS score of 9.3 (CRITICAL severity). Vector: 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.

How do I patch CVE-2026-25776?

Patch guidance is available from sixapart security advisories. CVEDatabase generates AI-assisted remediation guidance on demand for CVE-2026-25776.

Fix CVE-2026-25776 - CRITICAL sixapart movable type

Q: Which products are affected by CVE-2026-25776?

8 products: sixapart movable type, sixapart movable type, sixapart movable type, sixapart movable type, sixapart movable type, and 3 more.

Description

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

CVSS Metrics

Vector: 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
Attack Vector: network
Complexity: low
Privileges: none
User Action: none
Confidentiality: undefined
Integrity: undefined
Availability: undefined
Weaknesses: CWE-94 · Code Injection

Metadata

Primary Vendor: SIXAPART
Published: 4/8/2026
Last Modified: 4/20/2026
Source: NIST NVD
Note: Verify all details with official vendor sources before applying patches.

Affected Products

sixapart : movable_typesixapart : movable_typesixapart : movable_typesixapart : movable_typesixapart : movable_typesixapart : movable_typesixapart : movable_typesixapart : movable_type

Remediation Guidance

Executive Summary

View on NIST NVD