Headline
GHSA-fp36-mjw5-fmgx: xwiki-platform-web-templates allows users to be created even when registration is disabled without validation via template macro
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
- Email us at Security Mailing List
Package
maven org.xwiki.platform:xwiki-platform-web-templates (Maven)
Affected versions
>= 8.0-rc-1, < 14.10.1
Patched versions
14.10.1
Description
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 /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 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
- Email us at Security Mailing List
References
- GHSA-fp36-mjw5-fmgx
- https://nvd.nist.gov/vuln/detail/CVE-2023-29513
- https://jira.xwiki.org/browse/XWIKI-19852
- https://jira.xwiki.org/browse/XWIKI-20400
tmortagne published to xwiki/xwiki-platform
Apr 18, 2023
Published to the GitHub Advisory Database
Apr 20, 2023
Reviewed
Apr 20, 2023
Last updated
Apr 20, 2023
Related news
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.