Impact
It’s possible for an unprivileged user to perform a remote code execution by injecting a groovy script in her own profile and by calling the Reset password feature since the feature is performing a save of the user profile with programming rights in the impacted versions of XWiki.
Patches
The problem has been patched in XWiki 13.1RC1 with a complete refactoring of the Reset password feature.
Workarounds
There’s different possible workarounds, all consisting in modifying the XWiki/ResetPassword page.
- the Reset password feature can be entirely disabled by deleting the XWiki/ResetPassword page
- the script in XWiki/ResetPassword can also be modified or removed: an administrator can replace it with a simple email contact to ask an administrator to reset the password.
References
https://jira.xwiki.org/browse/XWIKI-16661
For more information
If you have any questions or comments about this advisory:
- Open an issue in Jira
- Email us at Security mailing-list
References
- https://github.com/xwiki/xwiki-platform/security/advisories/GHSA-mgjw-2wrp-r535
- https://jira.xwiki.org/browse/XWIKI-16661
- https://nvd.nist.gov/vuln/detail/CVE-2022-23616
- https://github.com/xwiki/xwiki-platform/commit/407caeba05c181bd4835e1dd12e431fa15ff728b#diff-c51a3675b6e312a9385a27566bfb4e5cL340
- https://github.com/advisories/GHSA-mgjw-2wrp-r535