CVE-2026-25776NVD

Vulnerability Summary

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

Severity Level

CRITICAL(9.8)

Published Date

Apr 8, 2026

Last Modified

Apr 8, 2026

Exploitation Status

No confirmed exploitation yet

EPSS Score (30-Day)

0.06%Probability

Root Weakness (CWE)

CWE-94: Code Injection ↗

The software constructs all or part of a code segment using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended syntax or behavior.

CVSS v4.0 Base Metrics — Score 9.3 (CRITICAL)

Attack VectorNetwork

Attack ComplexityLow

Attack RequirementsNone

Privileges RequiredNone

User InteractionNone

Confidentiality (Vulnerable System)High

Integrity (Vulnerable System)High

Availability (Vulnerable System)High

Confidentiality (Subsequent System)None

Integrity (Subsequent System)None

Availability (Subsequent System)None

CVSS v3.0 Base Metrics — Score 9.8 (CRITICAL)

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredNone

User InteractionNone

ScopeUnchanged

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

Affected & Patched Versions

Affected Versions

Six Apart Ltd. Movable Type >= 9.1.0 and earlier
Six Apart Ltd. Movable Type >= 9.0.6 and earlier
Six Apart Ltd. Movable Type >= 8.8.2 and earlier
Six Apart Ltd. Movable Type >= 8.0.9 and earlier
Six Apart Ltd. Movable Type Advanced >= 9.1.0 and earlier
Six Apart Ltd. Movable Type Advanced >= 9.0.6 and earlier
Six Apart Ltd. Movable Type Advanced >= 8.8.2 and earlier
Six Apart Ltd. Movable Type Advanced >= 8.0.9 and earlier
Six Apart Ltd. Movable Type Premium >= 9.1.0 and earlier
Six Apart Ltd. Movable Type Premium >= 9.0.6 and earlier
Six Apart Ltd. Movable Type Premium Advanced Edition >= 9.1.0 and earlier
Six Apart Ltd. Movable Type Premium Advanced Edition >= 9.0.6 and earlier
Six Apart Ltd. Movable Type Premium >= 2.14 and earlier
Six Apart Ltd. Movable Type Premium Advanced Edition >= 2.14 and earlier
Six Apart Ltd. Movable Type Premium (MT8-based) >= 2.14 and earlier
Six Apart Ltd. Movable Type >= 5.1 to 5.18
Six Apart Ltd. Movable Type >= 5.2
Six Apart Ltd. Movable Type >= 5.2.1 to 5.2.13
Six Apart Ltd. Movable Type >= 6.0
Six Apart Ltd. Movable Type >= 6.0.1 to 6.8.8
Six Apart Ltd. Movable Type >= 7 r.4207 to r.5510
Six Apart Ltd. Movable Type >= 8.4.0 to 8.4.4
Six Apart Ltd. Movable Type >= 1.0 to 1.68

Patched Versions

Not provided by cveorg for this CVE.

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