EUVD-2026-213844

fkie_cve-2023-29513

XWiki Platform is a generic wiki platform offering runtime services for applications built on top of it. If guest has view right on any document. It's possible to create a new user using the `distribution/firstadminuser.wiki` in the wrong context. This vulnerability has been patched in XWiki 15.0-rc-1 and 14.10.1. There is no known workaround other than upgrading.

GHSA-fp36-mjw5-fmgx — xwiki-platform-web-templates allows users to be created even when registration is disabled without validation via templ…

Affected: Maven: org.xwiki.platform:xwiki-platform-web-templates

### Impact

If a guest has view rights on any document, it's possible to create a new user using the `distribution/firstadminuser.wiki` in the wrong context.

To reproduce:

* On a wiki with view rights for guests but user registration disabled, open as guest <server>/xwiki/bin/view/Main?sheet=CKEditor.HTMLConverter&language=en&sourceSyntax=xwiki%2F2.1&stripHTMLEnvelope=true&fromHTML=false&toHTML=true&text=%7B%7Btemplate+name%3D%22distribution%2Ffirstadminuser.wiki%22+%2F%7D%7D where <server> is the URL of your XWiki installation. * Enter username and password of your choice. * Click "Register and login"

### Patches

The vulnerability has been patched in XWiki 15.0-rc-1 and 14.10.1.

### Workarounds There is no known workaround other than upgrading.

### References https://jira.xwiki.org/browse/XWIKI-19852 https://jira.xwiki.org/browse/XWIKI-20400

### For more information

If you have any questions or comments about this advisory: * Open an issue in [Jira XWiki.org](https://jira.xwiki.org/) * Email us at [Security Mailing List](mailto:security@xwiki.org)

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GHSA-fp36-mjw5-fmgx — xwiki-platform-web-templates allows users to be created even when registration is disabled without validation via templ…

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