CVE-2026-53966
Published:September 15, 2026
Updated:September 22, 2026
XWiki Platform is a generic wiki platform. From 13.4-rc-1 until 16.10.17, 17.4.10, 17.10.4, and 18.1.0-rc-1, the Live Data edit REST API allows a user who can edit a page to change that page's rights without executing the normal document-saving authorization checks. The user can grant script right and then execute potentially dangerous Velocity scripts or send unfiltered HTML and JavaScript to clients. The same missing checks can circumvent extension security controls implemented as listeners for UserUpdatingDocumentEvent and related user document events. This issue is fixed in versions 16.10.17, 17.4.10, 17.10.4, and 18.1.0-rc-1.
Affected Packages
https://github.com/xwiki/xwiki-platform.git (GITHUB):
Affected version(s) >=xwiki-platform-13.4-rc-1 <xwiki-platform-16.10.17Fix Suggestion:
Update to version xwiki-platform-16.10.17https://github.com/xwiki/xwiki-platform.git (GITHUB):
Affected version(s) >=xwiki-platform-17.0.0-rc-1 <xwiki-platform-17.4.10Fix Suggestion:
Update to version xwiki-platform-17.4.10https://github.com/xwiki/xwiki-platform.git (GITHUB):
Affected version(s) >=xwiki-platform-17.5.0 <xwiki-platform-17.10.4Fix Suggestion:
Update to version xwiki-platform-17.10.4https://github.com/xwiki/xwiki-platform.git (GITHUB):
Affected version(s) >=xwiki-platform-18.0.0-rc-1 <xwiki-platform-18.1.0-rc-1Fix Suggestion:
Update to version xwiki-platform-18.1.0-rc-1org.xwiki.platform:xwiki-platform-livedata-livetable (JAVA):
Affected version(s) >=18.0.0-rc-1 <18.1.0-rc-1Fix Suggestion:
Update to version 18.1.0-rc-1org.xwiki.platform:xwiki-platform-livedata-livetable (JAVA):
Affected version(s) >=17.5.0 <17.10.4Fix Suggestion:
Update to version 17.10.4org.xwiki.platform:xwiki-platform-livedata-livetable (JAVA):
Affected version(s) >=17.0.0-rc-1 <17.4.10Fix Suggestion:
Update to version 17.4.10org.xwiki.platform:xwiki-platform-livedata-livetable (JAVA):
Affected version(s) >=13.4-rc-1 <16.10.17Fix Suggestion:
Update to version 16.10.17Related Resources (11)
Do you need more information?
Contact UsCVSS v4
Base Score:
7.1
Attack Vector
NETWORK
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
LOW
User Interaction
NONE
Vulnerable System Confidentiality
NONE
Vulnerable System Integrity
HIGH
Vulnerable System Availability
NONE
Subsequent System Confidentiality
NONE
Subsequent System Integrity
NONE
Subsequent System Availability
NONE
CVSS v3
Base Score:
6.5
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
HIGH
Availability
NONE
Weakness Type (CWE)
Missing Authorization
EPSS
Base Score:
0.33