{"id":"CVE-2023-40177","aliases":["GHSA-5mf8-v43w-mfxp"],"url":"https://o3.security/vulnerability/CVE-2023-40177","summary":"XWiki Platform privilege escalation (PR) from account through AWM content fields","details":"### Impact\n\nAny registered user can use the content field of their user profile page to execute arbitrary scripts with programming rights, thus effectively performing rights escalation.\n\nThe problem is present [since version 4.3M2](https://jira.xwiki.org/browse/XWIKI-7369) when AppWithinMinutes Application added support for the Content field, allowing any wiki page (including the user profile page) to use its content as an AWM Content field, which has a custom displayer that executes the content with the rights of the ``AppWithinMinutes.Content`` author, rather than the rights of the content author.\n\n### Patches\n\nThe issue has been fixed in XWiki 14.10.5 and 15.1RC1 by https://github.com/xwiki/xwiki-platform/commit/dfb1cde173e363ca5c12eb3654869f9719820262 . The fix is in the content of the [AppWithinMinutes.Content](https://github.com/xwiki/xwiki-platform/commit/dfb1cde173e363ca5c12eb3654869f9719820262#diff-850f6875c40cf7932f40a985e99679a041891c6ee75d10239c06921c0019cf78R82) page that defines the custom displayer. By using the ``display`` script service to render the content we make sure that the proper author is used for access rights checks.\n\n### Workarounds\n\nIf you want to fix this problem on older versions of XWiki that have not been patched then you need to modify the content of ``AppWithinMinutes.Content`` page to use the ``display`` script service to render the content, like this:\n\n```\n- {{html}}$tdoc.getRenderedContent($tdoc.content, $tdoc.syntax.toIdString()).replace('{{', '{{'){{/html}}\n+ {{html}}$services.display.content($tdoc, {\n+   'displayerHint': 'default'\n+ }).replace('{{/html}}', '{{/html}}'){{/html}}\n```\n\n### References\n\n* JIRA issue https://jira.xwiki.org/browse/XWIKI-19906\n* Fix https://github.com/xwiki/xwiki-platform/commit/dfb1cde173e363ca5c12eb3654869f9719820262\n\n### For more information\n\nIf you have any questions or comments about this advisory:\n* Open an issue in [Jira XWiki.org](https://jira.xwiki.org/)\n* Email us at [Security Mailing List](mailto:security@xwiki.org)\n\n### Attribution\n\nThis vulnerability has been found and reported by @michitux .","published":"2023-08-23T20:11:45.227Z","modified":"2026-08-12T14:50:56.262047Z","cvss":{"score":9.9,"severity":"CRITICAL","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:L"},"epss":null,"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"Maven","name":"org.xwiki.platform:xwiki-platform-appwithinminutes-ui","fixedVersion":"14.10.5"}],"fix":{"url":"https://github.com/xwiki/xwiki-platform/commit/dfb1cde173e363ca5c12eb3654869f9719820262","label":"xwiki/xwiki-platform@dfb1cde"},"references":[{"type":"WEB","url":"https://jira.xwiki.org/browse/XWIKI-7369"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/40xxx/CVE-2023-40177.json"},{"type":"ADVISORY","url":"https://github.com/xwiki/xwiki-platform/security/advisories/GHSA-5mf8-v43w-mfxp"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2023-40177"},{"type":"FIX","url":"https://github.com/xwiki/xwiki-platform/commit/dfb1cde173e363ca5c12eb3654869f9719820262"},{"type":"PACKAGE","url":"https://github.com/xwiki/xwiki-platform"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-08-12T14:50:56.262047Z"}}