GHSA-g75c-cjr6-39mc XWiki Platform's Mail.MailConfig can be edited by any user with edit rights

• Maven org.xwiki.platform:xwiki-platform-mail-send-default: >= 11.8-rc-1, < 14.4.8 → fixed in 14.4.8 • Maven org.xwiki.platform:xwiki-platform-mail-send-default: >= 14.5, < 14.10.6 → fixed in 14.10.6 • Maven org.xwiki.platform:xwiki-platform-mail-send-default: >= 15.0-rc-1, < 15.1 → fixed in 15.1

Impact `Mail.MailConfig` can be edited by any logged-in user by default. Consequently, they can: • change the mail obfuscation configuration • view and edit the mail sending configuration, including the smtp domain name and credentials. Patches The problem has been patched on XWiki 14.4.8, 15.1, and 14.10.6. Workarounds The rights of the `Mail.MailConfig` page can be manually updated so that only a set of trusted users can view, edit and delete it (e.g., the `XWiki.XWikiAdminGroup` group). On 14.4.8+, 15.1-rc-1+, or 14.10.5+, if at startup `Mail.MailConfig` does not have any rights defined, `view`, `edit ` and `delete` rights are automatically granted to the `XWiki.XWikiAdminGroup` group. See the corresponding patch. References • https://jira.xwiki.org/browse/XWIKI-20519 + https://jira.xwiki.org/browse/XWIKI-20671 • https://github.com/xwiki/xwiki-platform/commit/d28d7739089e1ae8961257d9da7135d1a01cb7d4 • https://github.com/xwiki/xwiki-platform/commit/8910b8857d3442d2e8142f655fdc0512930354d1 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