CVE-2025-54856
October 23, 2025
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.
Affected Packages
https://github.com/movabletype/movabletype.git (GITHUB):
Affected version(s) >=mt8.5.0 <mt8.8.0Fix Suggestion:
Update to version mt8.8.0https://github.com/movabletype/movabletype.git (GITHUB):
Affected version(s) >=mt8.0.2 <mt8.0.8Fix Suggestion:
Update to version mt8.0.8https://github.com/movabletype/movabletype.git (GITHUB):
Affected version(s) >=mt7.0 <mt7.906.5Fix Suggestion:
Update to version mt7.906.5https://github.com/movabletype/movabletype.git (GITHUB):
Affected version(s) >=mt8.1.0 <mt8.4.4Fix Suggestion:
Update to version mt8.4.4Related Resources (3)
Do you need more information?
Contact UsCVSS v4
Base Score:
4.6
Attack Vector
NETWORK
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
HIGH
User Interaction
ACTIVE
Vulnerable System Confidentiality
NONE
Vulnerable System Integrity
NONE
Vulnerable System Availability
NONE
Subsequent System Confidentiality
LOW
Subsequent System Integrity
LOW
Subsequent System Availability
NONE
CVSS v3
Base Score:
4.8
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
HIGH
User Interaction
REQUIRED
Scope
CHANGED
Confidentiality
LOW
Integrity
LOW
Availability
NONE
Weakness Type (CWE)
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
EPSS
Base Score:
0.05
