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.
The problem has been patched in XWiki 13.1RC1 with a complete refactoring of the Reset password feature.
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.
https://jira.xwiki.org/browse/XWIKI-16661
If you have any questions or comments about this advisory: * Open an issue in Jira * Email us at Security mailing-list
{ "nvd_published_at": "2022-02-09T21:15:00Z", "github_reviewed_at": "2022-02-09T21:32:10Z", "severity": "HIGH", "github_reviewed": true, "cwe_ids": [ "CWE-74" ] }