Headline
GHSA-793w-g325-hrw2: XWiki Platform vulnerable to persistent Cross-site Scripting through CKEditor Configuration pages
Effect
Any user with edit rights can edit all pages in the `CKEditor’ space. This makes it possible to perform a variety of harmful actions, such as
- removing technical documents, leading to loss of service
- Editing the javascript configuration of CKEditor, leading to persistent XSS
Patches
This issue has been patched in XWiki 14.10.6 and XWiki 15.1. This issue has been patched on the CKEditor Integration extension 1.64.9 for XWiki version older than 14.6RC1.
Workarounds
The issue can be fixed manually by restricting the edit and delete rights to a trusted user or group (e.g. the XWiki.XWikiAdminGroup group), implicitly disabling those rights for all other users.
See https://github.com/xwiki/xwiki-platform/commit/9d9d86179457cb8dc48b4491510537878800be4f
References
- https://jira.xwiki.org/browse/XWIKI-20590
- https://jira.xwiki.org/browse/CKEDITOR-508
- https://github.com/xwiki/xwiki-platform/commit/9d9d86179457cb8dc48b4491510537878800be4f
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.contrib:application-ckeditor-ui (Maven)
Affected versions
>= 1.9, < 1.64.9
Patched versions
1.64.9
maven org.xwiki.platform:xwiki-platform-ckeditor-ui (Maven)
>= 14.6-rc-1, < 14.10.6
>= 15.0-rc-1, < 15.1
14.10.6
15.1
Description
Effect
Any user with edit rights can edit all pages in the `CKEditor’ space. This makes it possible to perform a variety of harmful actions, such as
- removing technical documents, leading to loss of service
- Editing the javascript configuration of CKEditor, leading to persistent XSS
Patches
This issue has been patched in XWiki 14.10.6 and XWiki 15.1.
This issue has been patched on the CKEditor Integration extension 1.64.9 for XWiki version older than 14.6RC1.
Workarounds
The issue can be fixed manually by restricting the edit and delete rights to a trusted user or group (e.g. the XWiki.XWikiAdminGroup group), implicitly disabling those rights for all other users.
See xwiki/xwiki-platform@9d9d861
References
- https://jira.xwiki.org/browse/XWIKI-20590
- https://jira.xwiki.org/browse/CKEDITOR-508
- xwiki/xwiki-platform@9d9d861
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-793w-g325-hrw2
- xwiki/xwiki-platform@9d9d861
- https://jira.xwiki.org/browse/CKEDITOR-508
- https://jira.xwiki.org/browse/XWIKI-20590
manuelleduc published to xwiki/xwiki-platform
Jun 30, 2023
Published to the GitHub Advisory Database
Jun 30, 2023
Reviewed
Jun 30, 2023
Last updated
Jun 30, 2023
Related news
XWiki Platform is a generic wiki platform offering runtime services for applications built on top of it. Any user with edit rights can edit all pages in the `CKEditor' space. This makes it possible to perform a variety of harmful actions, such as removing technical documents, leading to loss of service and editing the javascript configuration of CKEditor, leading to persistent XSS. This issue has been patched in XWiki 14.10.6 and XWiki 15.1. This issue has been patched on the CKEditor Integration extension 1.64.9 for XWiki version older than 14.6RC1. Users are advised to upgrade. Users unable to upgrade may manually address the issue by restricting the `edit` and `delete` rights to a trusted user or group (e.g. the `XWiki.XWikiAdminGroup` group), implicitly disabling those rights for all other users. See commit `9d9d86179` for details.