CVE-2023-46243: Code execution via the edit action in XWiki platform
Impact
In XWiki Platform, it's possible for a user to execute any content with the right of an existing document's content author, provided the user have edit right on it. The reason for this is that the edit action sets the content without modifying the content author.
To reproduce: Log in as a user without programming or script right. Open the URL <xwiki-host>/xwiki/bin/edit/<document>/?content=%7B%7Bgroovy%7D%7Dprintln%28%22Hello+from+Groovy%21%22%29%7B%7B%2Fgroovy%7D%7D&xpage=view, where <xwiki-host> is the URL of your XWiki installation and <document> is the path to a document whose content author has programming right (or script right) and on which the current user has edit right.
The text "Hello from Groovy!" is displayed in the page content, showing that the Groovy macro has been executed, which should not be the case for a user without programming right.
Patches
This has been patched in XWiki 14.10.6 and 15.2RC1.
Workarounds
There are no known workarounds for it.
References
https://jira.xwiki.org/browse/XWIKI-20385 https://github.com/xwiki/xwiki-platform/commit/a0e6ca083b36be6f183b9af33ae735c1e02010f4
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
Other sources
XWiki Platform is a generic wiki platform offering runtime services for applications built on top of it. In affected versions it's possible for a user to execute any content with the right of an existing document's content author, provided the user have edit right on it. A crafted URL of the form /xwiki/bin/edit//?content=%7B%7Bgroovy%7D%7Dprintln%28%22Hello+from+Groovy%21%22%29%7B%7B%2Fgroovy%7D%7D&xpage=view can be used to execute arbitrary groovy code on the server. This vulnerability has been patched in XWiki versions 14.10.6 and 15.2RC1. Users are advised to update. There are no known workarounds for this issue.
— MITRE
Affected Software
Remediation
Patch Available
Event History
Frequently Asked Questions
What is CVE-2023-46243?
CVE-2023-46243 is a vulnerability in XWiki Platform that allows a user to execute any content with the rights of an existing document's content author.
How does CVE-2023-46243 impact XWiki Platform?
CVE-2023-46243 allows a user to execute arbitrary content if they have edit rights on a document with the right of the content author.
What is the severity of CVE-2023-46243?
CVE-2023-46243 has a severity level of critical with a value of 10.
Which versions of XWiki Platform are affected by CVE-2023-46243?
XWiki Platform versions 1.0 to 14.10.6 and versions 15.0 to 15.2-rc-1 are affected by CVE-2023-46243.
How can I fix CVE-2023-46243?
To fix CVE-2023-46243, update XWiki Platform to versions 14.10.6 or 15.2-rc-1.