Headline
GHSA-qcj9-gcpg-4w2w: XWiki Platform web templates vulnerable to reflected XSS in the create document form if name validation is enabled
Impact
When document names are validated according to a name strategy (disabled by default), XWiki is vulnerable to a reflected XSS attack in the page creation form. To reproduce, make sure that “Validate names before saving” is enabled in the administration under “Editing” -> “Name strategies” and then open <xwiki-host>/xwiki/bin/create/Main/%3Cscript%3Ealert%28%27Test%20Test%20Test%20Test%20Test%27%29%3C%2Fscript%3E where <xwiki-host> is the URL of your XWiki installation. This displays an alert if the installation is vulnerable. This allows an attacker to execute arbitrary actions with the rights of the user opening the malicious link. Depending on the rights of the user, this may allow remote code execution and full read and write access to the whole XWiki installation.
Patches
This has been patched in XWiki 14.10.12 and 15.5RC1 by adding appropriate escaping.
Workarounds
The vulnerable template file createinline.vm is part of XWiki’s WAR and can be patched by manually applying the changes from the fix.
References
- https://github.com/xwiki/xwiki-platform/commit/ba56fda175156dd35035f2b8c86cbd8ef1f90c2e
- https://jira.xwiki.org/browse/XWIKI-20854
- GitHub Advisory Database
- GitHub Reviewed
- CVE-2023-45136
XWiki Platform web templates vulnerable to reflected XSS in the create document form if name validation is enabled
Critical severity GitHub Reviewed Published Oct 25, 2023 in xwiki/xwiki-platform • Updated Oct 25, 2023
Package
maven org.xwiki.platform:xwiki-platform-web-templates (Maven)
Affected versions
>= 12.0-rc-1, < 14.10.12
>= 15.0-rc-1, < 15.5-rc-1
Patched versions
14.10.12
15.5-rc-1
Impact
When document names are validated according to a name strategy (disabled by default), XWiki is vulnerable to a reflected XSS attack in the page creation form. To reproduce, make sure that “Validate names before saving” is enabled in the administration under “Editing” -> “Name strategies” and then open <xwiki-host>/xwiki/bin/create/Main/%3Cscript%3Ealert%28%27Test%20Test%20Test%20Test%20Test%27%29%3C%2Fscript%3E where <xwiki-host> is the URL of your XWiki installation. This displays an alert if the installation is vulnerable. This allows an attacker to execute arbitrary actions with the rights of the user opening the malicious link. Depending on the rights of the user, this may allow remote code execution and full read and write access to the whole XWiki installation.
Patches
This has been patched in XWiki 14.10.12 and 15.5RC1 by adding appropriate escaping.
Workarounds
The vulnerable template file createinline.vm is part of XWiki’s WAR and can be patched by manually applying the changes from the fix.
References
- xwiki/xwiki-platform@ba56fda
- https://jira.xwiki.org/browse/XWIKI-20854
References
- GHSA-qcj9-gcpg-4w2w
- xwiki/xwiki-platform@ba56fda
- https://jira.xwiki.org/browse/XWIKI-20854
Published to the GitHub Advisory Database
Oct 25, 2023
Last updated
Oct 25, 2023
Related news
XWiki Platform is a generic wiki platform offering runtime services for applications built on top of it. When document names are validated according to a name strategy (disabled by default), XWiki starting in version 12.0-rc-1 and prior to versions 12.10.12 and 15.5-rc-1 is vulnerable to a reflected cross-site scripting attack in the page creation form. This allows an attacker to execute arbitrary actions with the rights of the user opening the malicious link. Depending on the rights of the user, this may allow remote code execution and full read and write access to the whole XWiki installation. This has been patched in XWiki 14.10.12 and 15.5-rc-1 by adding appropriate escaping. The vulnerable template file `createinline.vm` is part of XWiki's WAR and can be patched by manually applying the changes from the fix.