xwiki-platform up to 15.10.11/16.4.0/16.5.x WYSIWYG Editor extension authorization

Summaryinfo

A vulnerability was found in xwiki-platform up to 15.10.11/16.4.0/16.5.x. It has been rated as problematic. Affected by this issue is some unknown functionality of the component WYSIWYG Editor extension. This manipulation causes authorization. This vulnerability is registered as CVE-2025-23025. Remote exploitation of the attack is possible. No exploit is available. Upgrading the affected component is advised.

Detailsinfo

A vulnerability classified as problematic was found in xwiki-platform up to 15.10.11/16.4.0/16.5.x. Affected by this vulnerability is an unknown function of the component WYSIWYG Editor extension. The manipulation with an unknown input leads to a authorization vulnerability. The CWE definition for the vulnerability is CWE-862. The product does not perform an authorization check when an actor attempts to access a resource or perform an action. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

XWiki Platform is a generic wiki platform offering runtime services for applications built on top of it. NOTE: The Realtime WYSIWYG Editor extension was **experimental**, and thus **not recommended**, in the versions affected by this vulnerability. It has become enabled by default, and thus recommended, starting with XWiki 16.9.0. A user with only **edit right** can join a realtime editing session where others, that where already there or that may join later, have **script** or **programming** access rights. This user can then insert **script rendering macros** that are executed for those users in the realtime session that have script or programming rights. The inserted scripts can be used to gain more access rights. This vulnerability has been patched in XWiki 15.10.2, 16.4.1 and 16.6.0-rc-1. Users are advised to upgrade. Users unable to upgrade may either disable the realtime WYSIWYG editing by disabling the ``xwiki-realtime`` CKEditor plugin from the WYSIWYG editor administration section or uninstall the Realtime WYSIWYG Editorextension (org.xwiki.platform:xwiki-platform-realtime-wysiwyg-ui).

It is possible to read the advisory at github.com. This vulnerability is known as CVE-2025-23025 since 01/10/2025. The exploitation appears to be easy. The attack can be launched remotely. It demands that the victim is doing some kind of user interaction. The technical details are unknown and an exploit is not publicly available.

Upgrading to version 15.10.12, 16.4.1 or 16.6.0-rc-1 eliminates this vulnerability.

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Productinfo

Type

• Content Management System

Name

• xwiki-platform

Version

• 15.10.0
• 15.10.1
• 15.10.2
• 15.10.3
• 15.10.4
• 15.10.5
• 15.10.6
• 15.10.7
• 15.10.8
• 15.10.9
• 15.10.10
• 15.10.11
• 16.0
• 16.1
• 16.2
• 16.3
• 16.4
• 16.4.0
• 16.5

CPE 2.3info

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CPE 2.2info

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Entryinfo

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