XWiki xwiki-platform up to 16.10.15/17.4.7/17.10.0 templates/changesdoc.vm cross site scripting

Summaryinfo

A vulnerability categorized as problematic has been discovered in XWiki xwiki-platform up to 16.10.15/17.4.7/17.10.0. Affected by this issue is some unknown functionality of the file templates/changesdoc.vm. The manipulation results in cross site scripting. This vulnerability is identified as CVE-2026-40105. The attack can be executed remotely. There is not any exploit available. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability was found in XWiki xwiki-platform up to 16.10.15/17.4.7/17.10.0. It has been classified as problematic. Affected is an unknown functionality of the file templates/changesdoc.vm. The manipulation with an unknown input leads to a cross site scripting vulnerability. CWE is classifying the issue as CWE-80. The product receives input from an upstream component, but it does not neutralize or incorrectly neutralizes special characters such as "<", ">", and "&" that could be interpreted as web-scripting elements when they are sent to a downstream component that processes web pages. This is going to have an impact on integrity. CVE summarizes:

XWiki Platform is a generic wiki platform offering runtime services for applications built on top of it. Versions 10.4-rc-1, through 16.10.15, 17.0.0-rc-1, through 17.4.7 and 17.5.0-rc-1 through 17.10.0 contain a reflected cross-site scripting vulnerability (XSS) in the comparison view between revisions of a page allows executing JavaScript code in the user's browser. If the current user is an admin, this can not only affect the current user but also the confidentiality, integrity and availability of the whole XWiki instance. If developers are unable to update immediately, they can apply the patch manually to templates/changesdoc.vm in the deployed WAR.

The advisory is available at github.com. This vulnerability is traded as CVE-2026-40105 since 04/09/2026. The exploitability is told to be easy. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. Successful exploitation requires user interaction by the victim. Technical details are known, but there is no available exploit. This vulnerability is assigned to T1059.007 by the MITRE ATT&CK project.

Upgrading to version 16.10.16, 17.4.8 or 17.10.1 eliminates this vulnerability.

If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

Type

• Content Management System

Vendor

• XWiki

Name

• xwiki-platform

Version

• 16.10.0
• 16.10.1
• 16.10.2
• 16.10.3
• 16.10.4
• 16.10.5
• 16.10.6
• 16.10.7
• 16.10.8
• 16.10.9
• 16.10.10
• 16.10.11
• 16.10.12
• 16.10.13
• 16.10.14
• 16.10.15
• 17.0
• 17.1
• 17.2
• 17.3
• 17.4
• 17.4.0
• 17.4.1
• 17.4.2
• 17.4.3
• 17.4.4
• 17.4.5
• 17.4.6
• 17.4.7
• 17.5
• 17.6
• 17.7
• 17.8
• 17.9
• 17.10.0

License

• open-source

Website

• Product: https://github.com/xwiki/xwiki-platform/

CPE 2.3info

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Entryinfo

If you want to get best quality of vulnerability data, you may have to visit VulDB.

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