GHSA-cwq6-mjmx-47p6

XWiki's scheduler in subwiki allows scheduling operations for any main wiki user

### Impact Any user with an account on the main wiki could run scheduling operations on subwikis. To reproduce, as a user on the main wiki without any special right, view the document `Scheduler.WebHome` in a subwiki. Then, click on any operation (*e.g.,* Trigger) on any job. If the operation is successful, then the instance is vulnerable. ### Patches This has been patched in XWiki 15.10.9 and 16.3.0. ### Workarounds If you have subwikis where the Job Scheduler is enabled, you can edit the objects on `Scheduler.WebPreferences` to match https://github.com/xwiki/xwiki-platform/commit/54bcc5a7a2e440cc591b91eece9c13dc0c487331#diff-8e274bd0065e319a34090339de6dfe56193144d15fd71c52c1be7272254728b4. ### References * https://jira.xwiki.org/browse/XWIKI-21663 * https://github.com/xwiki/xwiki-platform/commit/54bcc5a7a2e440cc591b91eece9c13dc0c487331 ### For more information If you have any questions or comments about this advisory: * Open an issue in [Jira XWiki.org](https://jira.xwiki.org/) * Email us at [Security Mailing List](mailto:security@xwiki.org)