WikiDiscover is an extension designed for use with a CreateWiki managed farm to display wikis. Special:WikiDiscover is a special page that lists all wikis on the wiki farm. However, the special page does not make any effort to escape the wiki name or description. Therefore, if a wiki sets its name and/or description to an XSS payload, the XSS will execute whenever the wiki is shown on Special:WikiDiscover. This issue has been patched with commit `2ce846dd93` and all users are advised to apply that patch. User unable to upgrade should block access to `Special:WikiDiscover`.

GitHub, Inc. AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:L

GitHub, Inc. CWE-79

GitHub, Inc. CWE-80

GitHub, Inc. https://github.com/miraheze/WikiDiscover/commit/2ce846dd93ddb9ec86f7472c4d57fe71a09dc827 [No types assigned]

GitHub, Inc. https://github.com/miraheze/WikiDiscover/security/advisories/GHSA-wf48-rqx3-39mf [No types assigned]

GitHub, Inc. https://issue-tracker.miraheze.org/T12697 [No types assigned]