{"id":"CVE-2024-55662","aliases":["GHSA-j2pq-22jj-4pm5"],"url":"https://o3.security/vulnerability/CVE-2024-55662","summary":"XWiki allows remote code execution through the extension sheet","details":"### Impact\nOn instances where `Extension Repository Application` is installed, any user can execute any code requiring `programming` rights on the server.\nIn order to reproduce on an instance, as a normal user without `script` nor `programming` rights, go to your profile and add an object of type `ExtensionCode.ExtensionClass`. Set the description to `{{async}}{{groovy}}println(\"Hello from Description\"){{/groovy}}{{/async}}` and press `Save and View`. If the description displays as `Hello from Description` without any error, then the instance is vulnerable.\n\n### Patches\nThis vulnerability has been fixed in XWiki 15.10.9 and 16.3.0.\n\n### Workarounds\nSince `Extension Repository Application` is not mandatory, it can be safely disabled on instances that do not use it.\nIt is also possible to manually apply [this patch](https://github.com/xwiki/xwiki-platform/commit/8659f17d500522bf33595e402391592a35a162e8#diff-9b6f9e853f23d76611967737f8c4072ffceaba4c006ca5a5e65b66d988dc084a) to the page `ExtensionCode.ExtensionSheet`, as well as [this patch](https://github.com/xwiki/xwiki-platform/commit/8659f17d500522bf33595e402391592a35a162e8#diff-d571404d94fa27360cfee64f2a11d8c819b397529db275e005606b7356610f82) to the page `ExtensionCode.ExtensionAuthorsDisplayer`.\n\n### References\n* https://jira.xwiki.org/browse/XWIKI-21890\n* https://github.com/xwiki/xwiki-platform/commit/8659f17d500522bf33595e402391592a35a162e8\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)","published":"2024-12-12T17:25:26.297Z","modified":"2026-10-28T02:30:36.045864681Z","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:H"},"epss":null,"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"Maven","name":"org.xwiki.platform:xwiki-platform-repository-server-ui","fixedVersion":"15.10.9"},{"ecosystem":"Maven","name":"org.xwiki.platform:xwiki-platform-repository-server-ui","fixedVersion":"16.3.0"}],"fix":{"url":"https://github.com/xwiki/xwiki-platform/commit/8659f17d500522bf33595e402391592a35a162e8","label":"xwiki/xwiki-platform@8659f17"},"references":[{"type":"WEB","url":"https://jira.xwiki.org/browse/XWIKI-21890"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/55xxx/CVE-2024-55662.json"},{"type":"ADVISORY","url":"https://github.com/xwiki/xwiki-platform/security/advisories/GHSA-j2pq-22jj-4pm5"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2024-55662"},{"type":"FIX","url":"https://github.com/xwiki/xwiki-platform/commit/8659f17d500522bf33595e402391592a35a162e8"},{"type":"PACKAGE","url":"https://github.com/xwiki/xwiki-platform"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-10-28T02:30:36.045864681Z"}}