{"id":"CVE-2023-29513","aliases":["GHSA-fp36-mjw5-fmgx"],"url":"https://o3.security/vulnerability/CVE-2023-29513","summary":"Users can be created even when registration is disabled without validation via the template macro in xwiki-platform","details":"### Impact\n\nIf a guest has view rights on any document, it's possible to create a new user using the `distribution/firstadminuser.wiki` in the wrong context.\n\nTo reproduce:\n\n* On a wiki with view rights for guests but user registration disabled, open as guest <server>/xwiki/bin/view/Main?sheet=CKEditor.HTMLConverter&language=en&sourceSyntax=xwiki%2F2.1&stripHTMLEnvelope=true&fromHTML=false&toHTML=true&text=%7B%7Btemplate+name%3D%22distribution%2Ffirstadminuser.wiki%22+%2F%7D%7D where <server> is the URL of your XWiki installation.\n* Enter username and password of your choice.\n* Click \"Register and login\"\n\n### Patches\n\nThe vulnerability has been patched in XWiki 15.0-rc-1 and 14.10.1.\n\n### Workarounds\nThere is no known workaround other than upgrading.\n\n### References\nhttps://jira.xwiki.org/browse/XWIKI-19852\nhttps://jira.xwiki.org/browse/XWIKI-20400\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","published":"2023-04-18T23:46:10.746Z","modified":"2026-08-12T03:51:10.239651343Z","cvss":{"score":5,"severity":"MEDIUM","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:L/A:N"},"epss":null,"cisaKev":null,"exploitsKnown":3,"affectedPackages":[{"ecosystem":"Maven","name":"org.xwiki.platform:xwiki-platform-web-templates","fixedVersion":"14.10.1"}],"fix":null,"references":[{"type":"WEB","url":"https://jira.xwiki.org/browse/XWIKI-19852"},{"type":"WEB","url":"https://jira.xwiki.org/browse/XWIKI-20400"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/29xxx/CVE-2023-29513.json"},{"type":"ADVISORY","url":"https://github.com/xwiki/xwiki-platform/security/advisories/GHSA-fp36-mjw5-fmgx"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2023-29513"},{"type":"PACKAGE","url":"https://github.com/xwiki/xwiki-platform"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-08-12T03:51:10.239651343Z"}}