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CVE-2025-54856

Published: Oct 23, 2025Updated: Oct 27, 2025 Sources: CVE List NVDCWE-79
NVD MITRE
4.8CVSSMEDIUM
EPSS Score
0.2%
Top 88.9%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
No Fix Available

Description

Movable Type contains a stored cross-site scripting vulnerability in Edit ContentData page. If crafted input is stored by an attacker with "ContentType Management" privilege, an arbitrary script may be executed on the web browser of the user who accesses Edit ContentData page.

CVSS Vector Breakdown

AV:NAC:LPR:HUI:RS:CC:LI:LA:N
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:HPrivileges Required
High
UI:RUser Interaction
Required
Scope
S:CScope
Changed
Impact
C:LConfidentiality
Low
I:LIntegrity
Low
A:NAvailability
None
Open in CVSS calculator →

Weaknesses

CWE-79

Affected Products

Movable Type (Software Edition)Six Apart Ltd.
Mixed
Web & CMS Plugins / cms-core
Movable Type Advanced (Software Edition)Six Apart Ltd.
Mixed
Web & CMS Plugins / cms-core
Movable Type Premium (Software Edition)Six Apart Ltd.
Mixed
Web & CMS Plugins / cms-core
Movable Type Premium (Advanced Edition) (Software Edition)Six Apart Ltd.
Mixed
Web & CMS Plugins / cms-core
Movable Type (Cloud Edition)Six Apart Ltd.
Mixed
Web & CMS Plugins / cms-core
six apart ltd.commercialUSWeb & CMS Pluginsaka movable type, movable type advanced, movable type cloud edition
and 1 more affected products View all →

Attack Graph

Products CVE Techniques Tactics

Click technique nodes to view MITRE ATT&CK details. Scroll to zoom, drag to pan.

Exploitability

No known exploits, KEV entries, or remediation guidance available for this vulnerability yet.

MITRE ATT&CK

2 techniques
Execution
Initial Access
View detailed technique mapping

References

https://movabletype.org/news/2025/10/mt-880-released.html
movabletype.org
https://www.sixapart.jp/movabletype/news/2025/10/22-1055.html
sixapart.jp
https://jvn.jp/en/jp/JVN24333679/
jvn.jp

Timeline

Published
Oct 23, 2025
Last Updated
Oct 27, 2025

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