Description
XWiki Platform is a generic wiki platform offering runtime services for applications built on top of it. Any user with edit right on any page can perform arbitrary remote code execution by adding instances of `XWiki.SearchSuggestConfig` and `XWiki.SearchSuggestSourceClass` to their user profile or any other page. This compromises the confidentiality, integrity and availability of the whole XWiki installation. This vulnerability has been patched in XWiki 14.10.21, 15.5.5 and 15.10.2.
References
https://github.com/xwiki/xwiki-platform/security/advisories/GHSA-h63h-5c77-77p5
https://github.com/xwiki/xwiki-platform/commit/0b135760514fef73db748986a3311f3edd4a553b
https://github.com/xwiki/xwiki-platform/commit/742cd4591642be4cdcaf68325f17540e0934e64e
https://github.com/xwiki/xwiki-platform/commit/9ce3e0319869b6d8131fc4e0909736f7041566a4
https://github.com/xwiki/xwiki-platform/commit/bbde8a4f564e3c28839440076334a9093e2b4834
https://jira.xwiki.org/browse/XWIKI-21473
